Physics Quiz

When Mario grabs Bowser’s tail, he spins him around. Mario is causing Bowser to accelerate towards the center of the circle.

• True

• False

A hypothesis is what a scientist keeps the same during each trial to make a valid experiment.

• True

• False

Newton’s second law states that the acceleration is inversely related to both mass and force.

• True

• False

If you get in a car crash, your body will continue to move forward due to inertia, which is described in Newton’s First Law.

• True

• False

An object at rest has

• both inertia and momentum.

• neither inertia nor momentum.

• momentum but no inertia.

• inertia but no momentum.

Which of the free body diagrams above represent an object with net forces equal to 5 N right?

• A

• B

• C

• D

• E none of these

A truck driving along a highway road has a large quantity of momentum. If it moves at the same speed but has twice as much mass, its momentum is ____.

• unchanged

• zero

• quadrupled

• doubled

The vertical acceleration of a projectile has the smallest magnitude ____.

• at the peak of its trajectory

• just prior to landing on the ground

• just after being launched

• ...nonsense! A projectiles’ acceleration is constant.

If an object is NOT accelerating, then we know for sure that it is ____.

• maintaining a constant velocity

• slowing down

• changing direction

• at rest

For any object, the greater the force that's applied to it, the greater its ____ will be.

• gravity

• acceleration

• inertia

• velocity