Energy Math

Determine the Kinetic Energy of a 1000 kg roller coaster car that is moving with a speed of 20.0m/s.

Tags

NGSS.MS-PS3-1

A cart loaded with a brick and pulled at constant speed along an inclined plane to the height of a seat-top. If the mass of the loaded cart is 3kg and the height of the seat-top is 0.45m, then what is the potential energy of the loaded cart at the height of the seat-top?

Tags

NGSS.MS-PS3-2

A 75kg refrigerator on the 70th floor of a skyscraper ( 300 meters above the ground). What is the potential energy of the refrigerator?

Tags

NGSS.MS-PS3-2

The potential energy of a 40kg cannon ball is 14,000J. How high was the cannon ball to have this much potential energy?

Tags

NGSS.MS-PS3-2

A cinder block is sitting on a platform 20m high. The block weights 79N. What is its potential energy?

The specific heat of aluminum is 0.21 cal/g° C. How much heat(Q) is released when a 10 g piece of aluminum foil is taken out of the oven and cools from 100° to 50°?

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is the kinetic energy energy of a 3kg ball that is rolling at 2 meters per second?

Tags

NGSS.MS-PS3-1

The specific heat(c) of copper is 0.39 J/g °C. What is the temperature change(∆t) when 100 Joules of heat(Q) is added to 20 grams of copper?

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Ty lifts a set of 1250kg weights a vertical distance of 2m in a weight lifting contest. What Potential Energy do the weights now possess?

• 12,789 Joules

• 24,500 Joules

• 4,500 Joules

Calculate the potential energy of a car with a mass of 2,500 kg that is on a hill 100 meters above sea level.

• 250,000 J

• 2,450,000 J

• 2,451,663 J

• 248 J

Tags

NGSS.MS-PS3-2