Work, Power, and Energy (Physical Science)

Front

When an object stores energy as a result of its position, it has:

Back

Potential Energy

Front

The energy an object has as a result of its motion.

Back

Kinetic Energy

Front

Assuming there are no outside forces, the total mechanical energy of the rollercoaster will:

Back

Remain constant

Front

Of the following, which would NOT be considered work?

• An Olympic lifter lifting the bar from the ground to their chest
• The lifter taking the bar from their chest to above their head
• Holding the bar above their head with their arms fully extended
• Dropping the bar and letting it fall to the ground

Back

Holding the bar above their head with their arms fully extended

Front

Energy can be defined as the ability to:

Back

Do work

Front

Which of the following is NOT a way to harness fuel?

• Water Mill
• Nuclear Fire
• Power Switch
• Mechanical

Back

Power Switch

Front

Which of the following statements are true according to the law of conservation of energy?

• Energy cannot be created
• Energy cannot be destroyed
• Energy can be converted from one form to another

Back

All of the above

Front

Work is the transfer of...

Back

Energy

Front

If it takes 7.5 J of work to move a box 0.75 m, how much force did you exert?

Back

10 N

Front

A worker uses a cart to move a load of bricks that weighs 680 N a distance of 15 m across a parking lot. What amount of work does the worker perform?

Back

10,200 J