LEARN IT: 5 Forces

Question	Answer
What is the difference between a scalar and a vector?	Image: What Is The Difference Between A Scalar And A Vector (binary/octet-stream)
List examples of scalars	Image: List Examples Of Scalars (binary/octet-stream)
List examples of vectors	Image: List Examples Of Vectors (binary/octet-stream)
How can you draw a vector?	Image: How Can You Draw A Vector (binary/octet-stream)
What is the difference between a contact force and a non-contact force?	Image: What Is The Difference Between A Contact Force And A Non Contact Force (binary/octet-stream)
List examples of contact forces	Image: List Examples Of Contact Forces (binary/octet-stream)
List examples of non-contact forces	Image: List Examples Of Non Contact Forces (binary/octet-stream)
What is weight?	Image: What Is Weight (binary/octet-stream)
How are weight and mass different?	Image: How Are Weight And Mass Difference (binary/octet-stream)
What is the mathematical relationship between weight and mass?	Image: What Is The Mathematical Relationship Between Weight And Mass (binary/octet-stream)
What is the formula that links mass and weight?	Image: What Is The Formula That Links Mass And Weight (binary/octet-stream)
What instrument can be used to measure weight?	Image: What Instrument Can Be Used To Measure Weight (binary/octet-stream)
What is meant by ‘centre of mass’	Image: What Is Meant By ‘Centre Of Mass’ (binary/octet-stream)
What does resultant force mean?	Image: What Does Resultant Force Mean (binary/octet-stream)
A 2N force and a 5N force are acting on an object in the same direction (to the right). What is the resultant force?	Image: A 2 N Force And A 5 N Force Are Acting On An Object In The Same Direction (To The Right). What Is The Resultant Force (binary/octet-stream)
A 2N force acts left and a 5N force acts right on an object. What is the resultant force?	Image: A 2 N Force Acts Left And A 5 N Force Acts Right On An Object. What Is The Resultant Force (binary/octet-stream)
What does a free-body force diagram show?	Image: What Does A Free Body Force Diagram Show (binary/octet-stream)
If two forces are acting on an object in different directions, how could you use a scale diagram to find the magnitude and direction of the resultant force?	Image: If Two Forces Are Acting On An Object In Different Directions, How Could You Use A Scale Diagram To Find The Magnitude And Direction Of The Resultant Force (binary/octet-stream)
What are the two components that you can split a resultant force into?	Image: What Are The Two Components That You Can Split A Resultant Force Into (binary/octet-stream)
What is work done?	Image: What Is Work Done (binary/octet-stream)
What is another term for work done?	Image: What Is Another Term For Work Done (binary/octet-stream)
What formula is used to calculate work done?	Image: What Formula Is Used To Calculate Work Done (binary/octet-stream)
What is the definition of 1 joule (hint – it comes from the formula for work done)	Image: What Is The Definition Of 1 Joule (Hint – It Comes From The Formula For Work Done) (binary/octet-stream)
What are the alternative units for the joule?	Image: What Are The Alternative Units For The Joule (binary/octet-stream)
What way do frictional forces always act on moving objects?	Image: What Way Do Frictional Forces Always Act On Moving Objects (binary/octet-stream)
What happens to the temperature of an object when work is done against friction forces?	Image: What Happens To The Temperature Of An Object When Work Is Done Against Friction Forces (binary/octet-stream)
Why is more than one force needed to change the shape of an object?	Image: Why Is More Than One Force Needed To Change The Shape Of An Object (binary/octet-stream)
What is the difference between elastic deformation and inelastic deformation?	Image: What Is The Difference Between Elastic Deformation And Inelastic Deformation (binary/octet-stream)
What is the relationship between the extension of an spring and the force applied?	Image: What Is The Relationship Between The Extension Of An Spring And The Force Applied (binary/octet-stream)
What is the formula that links force and extension of a spring?	Image: What Is The Formula That Links Force And Extension Of A Spring (binary/octet-stream)
If an object is compressed, rather than stretched, what does e stand for?	Image: If An Object Is Compressed, Rather Than Stretched, What Does E Stand For (binary/octet-stream)
What type of energy is stored when something is stretched or compressed?	Image: What Type Of Energy Is Stored When Something Is Stretched Or Compressed (binary/octet-stream)
If a spring is elastically deformed, what is the relationship between the work done on the spring and the elastic potential energy stored?	Image: If A Spring Is Elastically Deformed, What Is The Relationship Between The Work Done On The Spring And The Elastic Potential Energy Stored (binary/octet-stream)
What is the difference between a directly proportional relationship, a linear relationship and a non-linear relationship?	Image: What Is The Difference Between A Directly Proportional Relationship, A Linear Relationship And A Non Linear Relationship (binary/octet-stream)
Sketch a graph to show how force and extension are lined (including beyond the limit of proportionality)	Image: Sketch A Graph To Show How Force And Extension Are Lined (Including Beyond The Limit Of Proportionality) (binary/octet-stream)
What is the limit of proportionality?	Image: What Is The Limit Of Proportionality (binary/octet-stream)
How could you find the spring constant from a force-extension graph?	Image: How Could You Find The Spring Constant From A Force Extension Graph (binary/octet-stream)
What formula is used to calculate the work done in stretching (or compressing) a spring?	Image: What Formula Is Used To Calculate The Work Done In Stretching (Or Compressing) A Spring (binary/octet-stream)
How are distance and displacement different?	Image: What Are Distance And Displacement Different (binary/octet-stream)
What are typical values for the speed of walking, running and cycling?	Image: What Are Typical Values For The Speed Of Walking, Running And Cycling (binary/octet-stream)
Why is the speed of an object not usually constant?	Image: Why Is The Speed Of An Object Not Usually Constant (binary/octet-stream)
What is the typical value for the speed of sound in air?	Image: What Is The Typical Value For The Speed Of Sound In Air (binary/octet-stream)
What is the formula used to calculate the speed on an object?	Image: What Is The Formula Used To Calculate The Speed On An Object (binary/octet-stream)
What does uniform motion mean?	Image: What Does Uniform Motion Mean (binary/octet-stream)
What is velocity?	Image: What Is Velocity (binary/octet-stream)
If something is moving in a circle, explain why it can have a constant speed, but the velocity changes?	Image: If Something Is Moving In A Circle, Explain Why It Can Have A Constant Speed, But The Velocity Changes (binary/octet-stream)
In a distance-time graph, how would you identify: A stationary object An object travelling with a constant speed An object reversing at a constant speed An object accelerating An object decelerating	Image: In A Distance Time Graph, How Would You Identify (binary/octet-stream)
How could you find the speed of an object in a distance-time graph?	Image: How Could You Find The Speed Of An Object In A Distance Time Graph (binary/octet-stream)
How could you find the speed of an object in a distance-time graph if it is a curve?	Image: How Could You Find The Speed Of An Object In A Distance Time Graph If It Is A Curve (binary/octet-stream)
In a velocity-time graph, how would you identify: A stationary object An object travelling with a constant speed An object accelerating at a constant rate An object decelerating at a constant rate	Image: In A Velocity Time Graph, How Would You Identify (binary/octet-stream)
How can you find acceleration or deceleration from a velocity time graph?	Image: How Can You Find Acceleration Or Deceleration From A Velocity Time Graph (binary/octet-stream)
How can you find the distance traveled in a velocity-time graph?	Image: How Can You Find The Distance Travelled In A Velocity Time Graph (binary/octet-stream)
How can you find the area under a velocity-time graph if it was a curve?	Image: How Can You Find The Area Under A Velocity Time Graph If It Was A Curve (binary/octet-stream)
What would non-uniform acceleration or deceleration look like in a velocity-time graph?	Image: What Would Non Uniform Acceleration Or Deceleration Look Like In A Velocity Time Graph (binary/octet-stream)
What are the units for acceleration?	Image: What Are The Units For Acceleration (binary/octet-stream)
What is the formula that links acceleration, change in velocity and time?	Image: What Is The Formula That Links Acceleration, Change In Velocity And Time (binary/octet-stream)
What is the formula that links initial velocity, final velocity, acceleration and distance?	Image: What Is The Formula That Links Initial Velocity, Final Velocity, Acceleration And Distance (binary/octet-stream)
What is the acceleration for an object falling due to gravity?	Image: What Is The Acceleration For An Object Falling Due To Gravity (binary/octet-stream)
What is the deceleration of an object being thrown up in the air?	Image: What Is The Deceleration Of An Object Being Thrown Up In The Air (binary/octet-stream)
What two forces are acting on a ball falling through a fluid?	Image: What Two Forces Are Acting On A Ball Falling Through A Fluid (binary/octet-stream)
Why does an object falling through a fluid accelerate at the start, and then travel at a constant speed?	Image: Why Does An Object Falling Through A Fluid Accelerate At The Start, And Then Travel At A Constant Speed (binary/octet-stream)
What is Newton’s first law?	Image: What Is Newton’S First Law (binary/octet-stream)
How does Newton’s first law explain a car moving at a constant speed?	Image: How Does Newton’S First Law Explain A Car Moving At A Constant Speed (binary/octet-stream)
What is inertia	Image: What Is Inertia (binary/octet-stream)
What is Newton’s second law in words?	Image: What Is Newton’S Second Law In Words (binary/octet-stream)
What is the equation for Newton’s second law?	Image: What Is The Equation For Newton’S Second Law (binary/octet-stream)
What could a resultant force on a moving object cause to happen?	Image: What Could A Resultant Force On A Moving Object Cause To Happen (binary/octet-stream)
What is inertial mass	Image: What Is Inertial Mass (binary/octet-stream)
What does this symbol ⁓ mean?	Image: What Does This Symbol ⁓ Mean (binary/octet-stream)
What is Newton’s third law?	Image: What Is Newton’S Third Law (binary/octet-stream)
What is important about the Newton’s third law pairs?	Image: What Is Important About The Newton’S Third Law Pairs (binary/octet-stream)
What is stopping distance?	Image: What Is Stopping Distance (binary/octet-stream)
How does speed affect stopping distance for a given braking force?	Image: How Does Speed Affect Stopping Distance For A Given Braking Force (binary/octet-stream)
What are typical values for reaction time?	Image: What Are Typical Values For Reaction Time (binary/octet-stream)
What factors affect a driver’s reaction time?	Image: What Factors Affect A Driver’S Reaction Time (binary/octet-stream)
State some ways of measuring reaction time	Image: State Some Ways Of Measuring Reaction Time (binary/octet-stream)
What factors affect braking distance?	Image: What Factors Affect Braking Distance (binary/octet-stream)
When a force is applied to the brakes of a car, work is done. Why?	Image: When A Force Is Applied To The Brakes Of A Car, Work Is Done. Why (binary/octet-stream)
What is the relationship between the speed of a car and the braking force needed to stop it?	Image: What Is The Relationship Between The Speed Of A Car And The Braking Force Needed To Stop It (binary/octet-stream)
What are the dangers of large decelerations?	Image: What Are The Dangers Of Large Decelerations (binary/octet-stream)
Estimate the forces involved in deceleration a car on a normal road	Image: Estimate The Forces Involved In Deceleration A Car On A Normal Road (binary/octet-stream)
What is momentum?	Image: What Is Momentum (binary/octet-stream)
What are the units for momentum?	Image: What Are The Units For Momentum (binary/octet-stream)
What is the law of conservation of momentum?	Image: What Is The Las Of Conservation Of Momentum (binary/octet-stream)
Explain what is happening, in terms of momentum, when two cars collide. One is stationary before the collision (car A). The cars stick together	Image: Explain What Is Happening, In Terms Of Momentum, When Two Cars Collide. One Is Stationary Before The Collision (Car A). The Cars Stick Together (binary/octet-stream)
Explain what is happening, in terms of momentum if someone steps off a stationary boat	Image: Explain What Is Happening, In Terms Of Momentum If Someone Steps Off A Stationary Boat (binary/octet-stream)
Investigate the relationship between force and extension for a spring	Image: Investigate The Relationship Between Force And Extension For A Spring (binary/octet-stream)
Investigate the effect of varying the force on the acceleration of an object of constant mass	Image: Investigate The Effect Of Varying The Force On The Acceleration Of An Object Of Constant Mass (binary/octet-stream)
Symbols, names and units for equations	Image: Symbols, Names And Units For Equations (binary/octet-stream)

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	Created by Isleworth Physics over 6 years ago