AQA GCSE Physics Exam Questions and Correct Detailed Answers with Rationales | Already Verified Answers

AQA GCSE Physics Exam Questions and
Correct Detailed Answers with Rationales |
Already Verified Answers




What is speed? - (ANSWER)->how fast something is going


How do you work out the speed? - (ANSWER)->speed= distance ÷ time


What is velocity - (ANSWER)->speed with direction


What do distance-time graphs show? - (ANSWER)->how something is travelling
over a period of time


What is the gradient of a distance-time graph equal to? - (ANSWER)->speed- how
fast the object is travelling


What does the downwards gradient on a distance-time graph show? - (ANSWER)-
>it means its going back towards its starting location

,What do the flat sections on a distance-time graph mean? - (ANSWER)->it's
stationary


What do straight up hill or down hill sections mean? - (ANSWER)->it's travelling at
a steady speed


The steeper the distance-time graph... - (ANSWER)->the faster it's going


What do curves represent in a distance time graph? - (ANSWER)->acceleration
(steepening curve) or deceleration (leveling off curve)


How to work out the speed on a distance-time graph? - (ANSWER)->the change in
y ÷ the change in x


What is acceleration? - (ANSWER)->how quickly the velocity is changing


What can the change in velocity be? - (ANSWER)->change is speed or a change in
direction


What is the formula for acceleration? - (ANSWER)->acceleration= change in
velocity ÷ time taken


What does the gradient equal on velocity-time graph? - (ANSWER)->acceleration

,What does the flat sections on a velocity-time graph represent? - (ANSWER)-
>steady sped


The steeper the velocity-time graph... - (ANSWER)->the greater the acceleration or
deceleration


What do the uphill sections mean on a velocity-time graph (/)? - (ANSWER)-
>acceleration


What do the downhill sections mean on a velocity-time graph (\)? - (ANSWER)-
>deceleration


What does the area under any section of the velocity-time graph (or all of it)
mean? - (ANSWER)->distance travelled in that time interval


What does a curve mean on a velocity-time graph? - (ANSWER)->changing
acceleration


What is the unit of acceleration? - (ANSWER)->m/s²


What are gravity's two important effects? - (ANSWER)->- on the surface of a
planet, it makes all things accelerate towards the ground


- it gives everything a weight


What is mass? - (ANSWER)->amount of stuff in an object

, What is the unit of mass? - (ANSWER)->kg


What is weight? - (ANSWER)->the pull of the gravitational force towards the
centre of the Earth


What is the unit of weight? - (ANSWER)->newtons


What is the formula relating mass, weight and gravity? - (ANSWER)->weight= mass
x gravitational field strength


What is the resultant force? - (ANSWER)->the overall force on a point/object


How do you calculate the resultant force? - (ANSWER)->one force + another force


If resultant force is 0 it means that... - (ANSWER)->the object won't move


If there is no resultant for on a moving object it means that... - (ANSWER)->it will
move at a constant velocity


If the resultant force on an object is not 0 it means that... - (ANSWER)->the object
will accelerate in the direction of the force


What does a non-zero resultant force produce? - (ANSWER)->acceleration