AQA Physics - Paper 2 (Higher)

How does the speed of a car affect its stopping distance at maximum braking force?

• Higher speed results in a shorter stopping distance.

• Higher speed results in a longer stopping distance.

• The speed of the car doesn't matter.

A teapot, weighing 10 N, is sat stationary on a table. What is the normal contact force applied to the teapot by the table?

• 0 N

• -10 N

• -20 N

Which of these is a typical running speed for a person?

• 1 m/s

• 3 m/s

• 12 m/s

What is the gradient of a distance-time graph equal to?

• Acceleration

• Distance

• Speed

Which quantity is not a vector?

• Speed

• Force

• Displacement

Brakes heat up when they're used because energy is transferred from...

• ...the thermal energy stores of the brakes to the kinetic energy stores of the wheels.

• ...the kinetic energy stores of the wheels to the thermal energy stores of the brakes.

• ...the thermal energy stores of the wheels to the kinetic energy stores of the brakes.

True or False? "If something's moving there must be an overall resultant force on it."

• True

• False

The acceleration of an object is...

• ...the change in height over time.

• ...the change in position over time.

• ...the change in velocity over time.

In a closed system, the total momentum after a collision is...

• ...the same as the total momentum before the collision.

• ...always zero.

• ...greater than the total momentum before the collision.

Up to the limit of proportionality, the extension of a stretched spring is...

• ...directly proportional to the force applied.

• ...inversely proportional to the force applied.

• ...unrelated to the force applied.