Energy, Work, Power Review (Calculations)

A weightlifter lifts a 600 newton weight 1.5 meters off the ground. How much work has she done?

Tags

NGSS.MS-PS3-5

You have to push with 15 N of force to move it 10 meters. How much work do you do?

Tags

NGSS.MS-PS3-5

500 J of work is done by a person who uses a force of 50N to move a box, how far does it go?

A 50kg (100lb) person is running at 7m/s (about 16 mph). How much kinetic energy do they have?

Tags

NGSS.MS-PS3-1

A 6kg cat misjudges a jump and falls 5 meters. How much gravitational potential energy does the cat have? (The cat is fine by the way.)

Tags

NGSS.MS-PS3-2

A 2kg television falls from 1 meter. How much energy does it have?

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

You generate 10 Watts of power when you move a weight in 4 seconds. How much work did you do?

You do 90 joules of work in 30 seconds. How much power have you generated?

A girl weighs 400 N. She runs up a flight of stairs of height 5 m in 4 seconds. Her power is:

Tags

NGSS.MS-PS3-5