Physical Science Chapter 3 Practice Test

The amount of gravitational force between objects depends on their ______.

• Frictional forces

• Speed and direction

• Inertia

• Masses and the distances between them

Tags

NGSS.MS-PS2-4

____ is a force that opposes the motion of objects that move through the air.

• Air resistance

• Gravity

• Static friction

• Rolling friction

Whenever a body is in motion, there is always ______ to oppose the motion.

• Friction

• Inertia

• gravity

• Acceleration

Tags

NGSS.MS-PS2-2

A 3000-N force gives an object an acceleration of 15 m/s². The mass of the object is

• 45,000 N

• 1500 N

• 200 kg

• 15 kg

Tags

NGSS.MS-PS2-2

An object that is in free fall seems to be ___.

• Not moving

• Slowed by air resistance

• Speeded up by air resistance

• Weightless

Tags

NGSS.MS-PS2-4

When two balls collide, the momentum of the balls after the collision is explained by

• The law of conservation of momentum

• Newton's first law of motion

• Newton's second law of motion

• Newton's third law of motion

Tags

NGSS.MS-PS2-1

When a force is exerted on an object, an equal and opposite force is exerted by the object. The forces are referred to as ______.

• Centripetal forces

• Friction forces

• Gravitational forces

• Action-reaction forces

Tags

NGSS.MS-PS2-1

In the absence of air, a penny and a feather dropped from the same height will ____.

• Fall at different rates

• Float

• Fall at the same rate

• Not have momentum

As an object falls faster, the force of air resistance _______.

• Increases

• Decreases

• Remains the same

According to Newton's second law of motion, a larger force acting on an object causes a greater ________ of the object.

Tags

NGSS.MS-PS2-2