Exam Review

A ________ is a push or a pull that acts on an object

• Friction

• Force

• Punch

• Gravity

Forces can be classified as either _________ forces or __________forces.

• Contact and

  Action-at-a-distance

• push and pull

• Touch and go

• Kinetic and potential

_________ is a force that opposes the relative motion of an object.

• Friction

• Force

• Gravity

• Mechanical advantage

Action-at-a-distance forces can push or pull an object without ________ it.

• heating

• looking

• touching

• cooling

______ is the amount of matter in an object.

• gravity

• weight

• material

• mass

________ is the amount of force on an object due to gravity.

• matter

• mass

• weight

• force

The metric unit for force is the _______.

• Joules(J)

• Newton(N)

• G/N

  (Gram/Newton)

• HP

  Horsepower

Find the weight of a 60kg student on Earth

• 688 N

• 588 J

• 688 kg

• 588 N

_________ is the energy due to an object's motion.

• Kinetic Energy

• Potential Energy

Kerry pushes a box with a force of 200 N and the box moves 4.0 m. How much work does Kerry do on the box?

• 800 kg

• 800 N

• 800 J

• 800 T