potential and kinetic calculation

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

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

What is the correct unit for energy?

• meters (m)

• kilogram meters per second (kg m/s)

• Newtons (N)

• Joules (J)

Calculate the Kinetic Energy when the mass of the object is 10 kg and the velocity is 2 m/s

KE = 1/2(m) * v²

• 10 Joules

• 20 Joules

• 40 joules

• 5 joules

If the 0.3 kg marble was moving at 6 m/s at the bottom of the ramp, how much kinetic energy did the marble have?

• 5.4 J

• 1.8 J

• 3 J

• 6 J

If the 1.2 kg basketball rolls at 3 m/s, what is it's kinetic energy?

• 2.7

• 5.4

• 3.6

• 9

What is the KE of a football which has a mass of 0.8 kg and is kicked at a velocity of 10m/s.

• 80 J
• 3.2 J
• 160 J
• 40 J

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

• 19.6 J

• 196 J

• 2 J

• 9.8J