Potential and Kinetic Energy

You serve a volleyball with a mass of 2.1 Kg. The ball leaves your hand with a speed of 30m/s. Think about what kind of energy the ball has.

• 945 J

• 63 J

• 617.4 J

Tags

NGSS.MS-PS3-1

A 1.0 kg ball is thrown into the air with an initial velocity of 30 m/s. Find the kinetic energy.

• 450 J

• 30 J

• 294 J

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What is the kinetic energy of a 2,000 kg boat moving at 5.0 m/s?

• 25,000 J

• 10,000 J

• 5,000 J

Tags

NGSS.MS-PS3-1

A cart is loaded with a brick and pulled at a constant speed along an inclined plane to the height of a seat-top. If the mass of the cart is 3.0 kg and the height of the seat-top is 0.45 m, then what is the potential energy of the loaded cart at the height of the seat-top?

• 13.23 J

• 1.35 J

• 29.4 J

Tags

NGSS.MS-PS3-2

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

• 220,500 J

• 22,500 J

• 735 J

Tags

NGSS.MS-PS3-2

Miss Diwater, the former platform diver for the Ringling Brother's Circus had a speed of 24.5 m/s² after she had just off the platform. If Miss's mass is 50 kg, when what was her kinetic energy?

• 15,006 J

• 600 J

• 28,800 J

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

There is a bell at the top of a tower that is 45 m high. The bell weighs 190 N. What type of energy does the bell have and calculate it.

• Potential; 8,550 J

• Kinetic; 8,550 J

• Potential; 83,790 J

• Kinetic; 83,790 J

Tags

NGSS.MS-PS3-2

A car is traveling with a speed of 40m/s and has a mass of 1,120 kg. What type of energy does the car have and calculate it.

• Kinetic; 896,000 J

• Potential; 896,000 J

• Kinetic; 22,400

• Potential; 22,400

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What is the kinetic energy of a 3-kg ball that is rolling at 2 m/s?

• 6 J

• 3 J

• 12 J

Tags

NGSS.MS-PS3-1

What equation do you use to find kinetic energy?

• 0.5 x mass x speed

• mass x gravity x height

• weight x gravity x height

Tags

NGSS.MS-PS3-1