Physical Science Exam

What is force?

• A push exerted on an object
• A push or pull exerted on an object
• Nothing
• A pull exerted on an object

What is the tendency of an object to resist a change in motion?

• coffee
• motion
• gravity
• inertia

Motion is the result of ____ force

• no
• balanced
• unbalanced

What type of friction is not moving?

• sliding
• static
• rolling
• fluid

An object at rest will remain at rest unless acted upon by an unbalanced force. Likewise an object in motion will remain in motion unless acted upon by an unbalanced force.

• Newton's 2nd law
• Newton's 3rd law
• Newton's 1st law

Force is measured in units called

• newtons
• joules
• kilograms
• m/s/s

This is the unit that we use to describe acceleration

• m/s/s
• speed
• distance
• none

What is the gravitational force exerted on an object called

• friction
• weight
• centripetal force
• momentum

Which body exerts the strongest gravitational force on you?

• the moon
• earth
• the sun
• a book

Which of the following is true about and object in free fall

• Its acceleration depends on its mass
• it has no inertia
• it pulls on earth and earth pulls on it
• its momentum is constant