G9U7 M5 Consolidation of Work, Energy, and Work-Energy Theorem

A woman is pushing a cart with a force of 110 N. She was to move the cart 2.0 m from its initial position. How much work does the woman do on the crate?

• 220.00 J

• 150.00 J

• 120.00 J

• 100.00 J

Tags

NGSS.MS-PS3-5

What is the kinetic energy of a 153.70 kg object that is moving with a speed of 8.23 m/s?

• 531.74 J
• 5205.27 J

• 1537.45 J
• 823.0 J

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

An object is lifted to a height of 10 meters, and its potential energy is 500 Joules. What is the mass of the object?

• 3.50 kg
• 5.10 kg
• 7.20 kg
• 9.80 kg

A rock is thrown vertically upward with an initial velocity of 30 m/s. If its mass is 4 kg and it reaches a maximum height of 50 meters, what is its total mechanical energy at its highest point? (Assume no air resistance)

• 1962.00 J

• 1500.00 J

• 2100.00 J

• 1800.00 J

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

Bruno is resting when suddenly a dog passes by. He was chased by the dog, making him run at a velocity of 17.0 m/s. How much work is done by Bruno if he has a mass of 44.0-kg?

• 15000.00 J

• 9000.00 J

• 6358.00 J

• 11000.00 J

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Arth pushes a crate with a net force of 255 N. The crate gets displaced 710.0 m to the right. Calculate the crate’s change in kinetic energy.

• 181050.00 J

• 181010.00 N

• 255.00 J

• 181040.00 J

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5