SS Week 4 Sem1

1/2 mv²

• KE
• PE
• Work
• Power

MGH

• KE
• PE
• Work
• Power

At which point is potential energy greatest

• W
• X
• Y
• Z

When a pendulum swings, at which point is potential energy at its greatest

• 1
• 2
• 3
• 4

What is the unit used to measure work?

• Joule
• Watt
• Newton
• Pascal

What is the unit used to measure Power?

• Joule
• Watt
• Newton
• Pascal

Energy can be _____________ or changed from one type to another.

• destroyed
• transferred
• created
• ignored

What is the equation for power?

• P = Work/time
• P = Force/time
• P = time/distance
• P = Work * time

True or False: Power can be increased by doing more work.

• True
• False

If a crane lifts a small car 15 meters using 25,000 joules of work in 5 seconds, how much power was generated by the crane?

• 5, 000 Watts
• 1,667 Watts
• 75 Watts
• 375,000 Watts