OCR Additional Science P3

What units is speed measured in?

What two things do you need to work out the speed?

How does a speed camera work?

What is constant in a distance time graph?

How do you calculate the speed travelled in a distance-time graph?

What unit is acceleration measured in?

In a speed-time graph:
What does a horizontal line represent?

In a speed-time graph:
Straight Line Positive Gradient

In a speed-time graph:
Striaght Line Negative Gradient

In a speed time graph, how do you calculate the total distance travelled?

What is velocity?

What does a negative sign represent in velocity?

What is acceleration and what does this mean in terms of acceleration?

What does weight do in terms of forces?

What does friction do?

What does air resistance do?

What does acceleration depend on if an unbalanced force acts?

What is the equation for resultant force?

Define a newton (N)

What happens if the resultant force is 0?

What happens if the resultant force is not 0?

What is the Stopping Distance?

What is thinking distance?

What is Braking Distance?

What factors increase the Braking Distance?

What factors increase the braking distance?

What are the scientific factors behind the stopping distance increases? Including mass, friction and tyres?

What is the relationship in thinking distance?

What is the relationship in Braking Distance?

How to mass and weight differ?

What are the Gravitialional Field Strengths of Earth and the Moon?

What is work and give an example.

What is required to do work and what are they both measured in (unit)?

What does the amount of work done depend on?

What is power and what unit is it measured in?

Why is having a higher power rating bad?

What does the KE of an object depend on?

What happens to the braking distance of a car, if it has a lot of KE?

What is the problem of cars relying on petrol and diesel to power their cars?

What are Bio - Fuels?

List the advantages of Bio-Fuel

What is the use of Solar Power in cars?

What's a disadvantage of solar power?

What does car fuel consumption depend on?

What is the relationship between the shape of the vehicle and the fuel consumption?

List 3 frictional forces

Frictional forces can act against the movement of the object slowing it down. How can these forces be reduced?

What are the implications of a greater drag force?

What safety features have been implemented in a car?

How do seatbelts, airbags and crumple zones help you in a collision?

What does a collapsible steering column do?

What's the safety cage in a car?

What does Anti-Lock Braking System (ABS) do?

What does traction control do?

What happens with more momentum?

What happens to the momentum during a crash?

How is the force affected, if the rate of chnage of momentum is fast?

How can you reduce the stopping forces?

Using a law of motion, how can force be decreased?

What is terminal speed?

How does the area of the object affect the drag?

What happens to the kinetic energy if an object is falling at terminal speed?

What happens to the GPE during terminal speed?

What are the factors of GPE or acceleration due to gravity?

What factors does GPE of an object depend on?

What's Earth's Gravitational Field Strength?

What happens to GPE when an object falls?

What happens if the mass is doubled to the KE?

What happens to the KE if the speed is doubled?