Newton's Second Law of Motion quiz

Newton’s Second Law

The acceleration of an object depends on the net force acting on it and the object’s mass.

A larger mass requires ____ to achieve the same acceleration.

more force

the amount of matter in an object (measured in kg).

Mass

the force of gravity on that mass (measured in N).

Weight

the tendency of an object to resist a change in motion; it depends on mass.

Inertia

The lighter object accelerates ____, because acceleration is inversely proportional to

mass ( a = F/m ).

more

If force is tripled, acceleration is ____

tripled

If mass is cut in half, acceleration is____ (for the same force).

doubled

______ occurs when air resistance equals the weight, so there is no net force.

Terminal velocity

Breaks the bottom string (inertia of the ball resists motion).

Quick pull

Breaks the top string (it supports both the ball and the tension).

Slow pull

When accelerating upward, _____ because an additional force is needed to

accelerate the block upward.

tension is less than weight

The object _____ and eventually stops because friction is greater than the applied

force.

slows down

A 1 N piece of gold would have the same mass, but weigh less on the Moon and more on Jupiter because

weight depends on gravity

the object is either at rest or moving at constant velocity.

zero acceleration

weight of the bear, since it moves at constant velocity.

Friction force