IPC Unit 2 Test

What is the mass of an object that is accelerating at 15 m/s² when a force of 3000 N is exerted?

• 1000 kg

• 200 kg

• 15 kg

• 9.8 kg

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

• Air resistance

• Static friction

• Rolling friction

• Gravity

Acceleration due to gravity is ______.

• 0.98 m/s

• 98 m/s²

• 9.8 m/s²

• 9.8 m/s

The sum of all the forces acting on an object is called the ______ force.

• final

• gravitational

• inertial

• net

A feather will fall through the air more slowly than a brick because of ______.

• air resistance

• momentum

• terminal velocity

• gravity

______ is the force that opposes the sliding motion of two surfaces that are touching each other.

• Inertia

• Friction

• Static

• Gravity

In space, if an object is thrown, that object will continue to move in that direction unless a force acts on it. Which law explains this scenario?

• Newton’s first law of motion

• the law of conservation of momentum

• Newton’s third law of motion

• Newton’s second law of motion

The gravitational force exerted on an object is called the object’s .

• Weight
• Mass

• Gravity

• Force

The statement “to every reaction there is an equal and opposite reaction” is a.

• Newton’s first law of motion

• Newton’s third law of motion

• the law of conservation of momentum

• Newton’s second law of motion

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

• Action

• Reaction
• Force

• Inertia