OCR Gateway Physics P3 flashcards

Speed can be measure in.....
[3]

The faster the speed of an object:
[2]

How to calculate speed?

Why is the average speed used?

How to work out average distance?

Example question:
Calculate the distance a car travels in 90 minutes if it's travelling at a constant speed of 80 km/h ?

How do speed cameras work?

What is the formula for measuring the speed of a vehicle on a speed camera?

(Distance-time graphs) The steeper the gradient....

distance - time graphs) a straight diagonal line shows...

(distance-time graphs) a straight horizontal line shows.....

(distance-time graphs) a steeper diagonal line means....

(distance-time graphs) a diagonal line going downwards means....

How do you work out the speed of an object on a distance-time graph?

The acceleration / deceleration of an object is..... ?

How do you measure acceleration and deceleration?

How do you work out the acceleration of a moving object?

Example question: A car accelerates at 1.5 m/s2 for 12 seconds.
Calculate the change in speed of the car

(speed-time graphs) a horizontal line means...

(speed-time graphs) a positive diagonal line shows....

(speed-time graphs) a negative diagonal line shows..

(speed-time graphs) the area underneath the speed-time can be used to measure....

How would you calculate the total distance travelled on a speed-time graph?

What is Force measured in?

Forces can cause objects to....?

Weight causes an object to have.... ?

How does friction affect a car?

What happens when a sky diver opens up a parachute mid-jump?

What happens to a sky-diver mid-jump when air resistance and weight are balanced?

if an unbalanced force acts, the acceleration of an object will depend on: ?
[2]

more force = ... ?

more mass = ... ?

What is the formula for the relationship between force, mass and acceleration

force (N) = .... ?