Work and Power

________is the transfer of energy that to an object by a force that makes an object move in the directions of the force?

• Force
• Energy
• Work
• Motion

A weightlifter does work when exerting a force that makes weights______, but does not work to hold weight in place because the weights are not ________?

• lift; lifting
• move; moving
• fall; falling
• drop; dropped

What two things do you need to know to calculate work?

• Mass and velocity
• Force and distance
• Energy and time
• Power and acceleration

The force must be in_________?

• the direction of acceleration
• the opposite of motion
• the center of mass
• the angle of elevation

What unit of SI should force be shown in?

• Kilogram (kg)
• Pound (lb)
• Joule (J)
• Newton (N)

What SI unit should distance be shown in?

• centimeter
• kilometer
• meter
• mile

What SI unit should work be shown in?

• pascal (Pa)
• watt (W)
• newton (N)
• joule (J)

A newton-meter is also known as or called?

• joule

• force
• power
• energy

The work equation uses the distance that them____acts on the object, not necessarily the total_______that object moves?

• energy; force
• mass; speed
• velocity; acceleration
• force; distance

The work done on an object depends on the _____of the force applied and the direction of the motion.

• intensity
• speed
• duration
• direction