WORK AND ENERGY

When energy moves from one form to another it is said to be _________________

Transformed

Eliminated

Lost.

Created

• A
• B
• C
• D

The energy associated with motion is called

Kinetic energy

Elastic potential energy

Gravitational potential energy

Nuclear energy

• A
• B
• C
• D

When you rub your hands together on a cold day, you use friction to convert Mechanical energy into thermal energy

Thermal energy into nuclear energy

Nuclear energy into electrical energy.

Electrical energy into radiant energy

• A
• B
• C
• D

Which of the following has kinetic energy?

a rock poised for a fall

an archer's bow that is drawn back

a rolling bowling ball

A spring that has been compressed

• A
• B
• C
• D

Energy of a rock perched on a cliff is an example of...

gravitational

elastic

chemical

kinetic

• A
• B
• C
• D

Energy from a compressed spring would be an example of...

kinetic

elastic

gravitational

chemical

• A
• B
• C
• D

How much work is being done with 200 N of force to the right on object that moves 426 meters to the right? (assume the force and displacement are in the same direction)

85,200 J

45,620 J

90,480 J

62,329 J

• A
• B
• C
• D

Gravitational potential energy depends on the ________ and ________ of the object.

Height and mass

Friction and movement

Mass and Movement

Height and Friction

• A
• B
• C
• D

When you release a stretched rubber band, the rubber band has ________ energy.

kinetic

potential

none of the above

all of the above

• A
• B
• C
• D

What is the formula for calculating the total amount of mechanical energy?

ME = KE + PE

KE = ME + PE

PE = mgh

ME = 1/2 mv2

• A
• B
• C
• D