Work & Power Practice

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Work is a form of energy.

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A Watt is the standard metric unit of work.

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Work is a time-based quantity; it is dependent upon how fast a force displaces an object.

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Superman applies a force on a truck to prevent it from moving down a hill. This is an example of work being done.

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An upward force is applied to a bucket as it is carried 20 m across the yard. This is an example of work being done.

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An upward force is applied by a chain to a roller coaster car to carry it up the hill of the first drop of the Shockwave ride. This is an example of work being done.

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If person A and person B do the same job but person B does it faster, then person A does more work but person B has more power.

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Rusty Nales uses a hammer to exert an applied force upon a stubborn nail to drive it into the wall.

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The force of friction acts upon a baseball player as he slides into third base.

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Which of the following statements is the most true about Kinetic Energy?

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Which of the following statements is the most true about Potential Energy?

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A job is done slowly, and an identical job is done quickly. Both jobs require the same amount of _______, but different amounts of _______. Pick the two words which fill in the blanks in their respective order.

Word Bank: energy, work, power, force

Math Practice

Work = Force*distance
Power = work/time = (Force*distance)/time

1

How much work is done on a 10 N block that is lifted 5 meters off the ground by a pulley?

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You did 170 J of work lifting a 140 N backpack. How high did you lift the backpack?

1

A crane does 62,500 J of work to life a boulder a distance of 25.0 m. How much did the boulder weigh?

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A motor does 5,000 J of work in 20 seconds. What is the power of the motor?

1

A machine that uses 200 W of power moves an object a distance of 15 m in 25s. Find the work done by the machine.

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A woman runs a kilometer using a force of 210N and a power output of 500W. How long in seconds (s) does it take this woman to complete 1000 m?

1

A mechanic used a hydraulic lift to raise a 12,054 N car 1.89 m above the floor of a garage. It took 4.75 s to raise the car. What was the power output of the lift?

1

Work & Power Practice

Work is a form of energy.

A Watt is the standard metric unit of work.

Work is a time-based quantity; it is dependent upon how fast a force displaces an object.

Superman applies a force on a truck to prevent it from moving down a hill. This is an example of work being done.

An upward force is applied to a bucket as it is carried 20 m across the yard. This is an example of work being done.

An upward force is applied by a chain to a roller coaster car to carry it up the hill of the first drop of the Shockwave ride. This is an example of work being done.

If person A and person B do the same job but person B does it faster, then person A does more work but person B has more power.

Rusty Nales uses a hammer to exert an applied force upon a stubborn nail to drive it into the wall.

The force of friction acts upon a baseball player as he slides into third base.

Which of the following statements is the most true about Kinetic Energy?

Which of the following statements is the most true about Potential Energy?

How much work is done on a 10 N block that is lifted 5 meters off the ground by a pulley?

You did 170 J of work lifting a 140 N backpack. How high did you lift the backpack?

A crane does 62,500 J of work to life a boulder a distance of 25.0 m. How much did the boulder weigh?

A motor does 5,000 J of work in 20 seconds. What is the power of the motor?

A machine that uses 200 W of power moves an object a distance of 15 m in 25s. Find the work done by the machine.

A woman runs a kilometer using a force of 210N and a power output of 500W. How long in seconds (s) does it take this woman to complete 1000 m?

A mechanic used a hydraulic lift to raise a 12,054 N car 1.89 m above the floor of a garage. It took 4.75 s to raise the car. What was the power output of the lift?

How much work is done using a 500-watt microwave oven for 5 minutes?

Work is a form of energy.

A Watt is the standard metric unit of work.

Work is a time-based quantity; it is dependent upon how fast a force displaces an object.

Superman applies a force on a truck to prevent it from moving down a hill. This is an example of work being done.

An upward force is applied to a bucket as it is carried 20 m across the yard. This is an example of work being done.

An upward force is applied by a chain to a roller coaster car to carry it up the hill of the first drop of the Shockwave ride. This is an example of work being done.

If person A and person B do the same job but person B does it faster, then person A does more work but person B has more power.

Rusty Nales uses a hammer to exert an applied force upon a stubborn nail to drive it into the wall.

The force of friction acts upon a baseball player as he slides into third base.

Which of the following statements is the most true about Kinetic Energy?

Which of the following statements is the most true about Potential Energy?

How much work is done on a 10 N block that is lifted 5 meters off the ground by a pulley?

You did 170 J of work lifting a 140 N backpack. How high did you lift the backpack?

A crane does 62,500 J of work to life a boulder a distance of 25.0 m. How much did the boulder weigh?

A motor does 5,000 J of work in 20 seconds. What is the power of the motor?

A machine that uses 200 W of power moves an object a distance of 15 m in 25s. Find the work done by the machine.

A woman runs a kilometer using a force of 210N and a power output of 500W. How long in seconds (s) does it take this woman to complete 1000 m?

A mechanic used a hydraulic lift to raise a 12,054 N car 1.89 m above the floor of a garage. It took 4.75 s to raise the car. What was the power output of the lift?

How much work is done using a 500-watt microwave oven for 5 minutes?