PS 4.3

If you serve a volleyball with a mass of 2.1 kg and the ball leaves your hand with a speed of 30 m/s. This ball has ________ Energy. Calculate it.

• Kinetic ,945 J

• Potential, 945

• Kinetic, 618 J

• Potential, 618 J

Tags

NGSS.HS-PS2-1

A baby carriage is sitting at the top of a high that is 21 m high. The carriage with the baby weighs 12 N. The carriage has ________ energy. Calculate it.

• Potential, 252 J

• Kinetic, 252 J

• Potential, 1512 J

• Kinetic, 1512

Tags

NGSS.MS-PS3-2

A car is traveling with a velocity of 40 m/s and has a mass of 1120 kg. The car has _______ energy.

• Kinetic, 896000 J

• Potential, 896000J

• Kinetic, 439488 J

• Potential, 439488 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

A cinder block is sitting on a platform 20 m high. The block has _____ energy.

• Potential, 1580 J

• Kinetic, 1580 J

• Potential, 15800 J

• Kinetic, 15800 J

Tags

NGSS.MS-PS3-2

There is a bell at the top of a tower that is 45 m. The bell weights 190 N. The bell has _____ energy. Calculate it.

• Potential, 8550 J

• Kinetic, 8550 J

• Potential, 192375 J

• Kinetic, 192375 J

Tags

NGSS.HS-PS3-1

A roller coaster is at the top of a 72 m hill and weighs 966 N. The coaster (at this moment) has ____ energy. Calculate it.

• Potential, 69552 J

• Kinetic, 69552 J

• Potential, 2503872 J

• Kinetic, 2503872 J

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

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

• Kinetic, 6 J

• Potential, 6 J

• Kinetic, 58.86 J

• Potential, 58.86 J

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

Two objects were lifted by a machine. One object had a mass of 2 kg, and was lifted at a speed of 2 m/s. The other had a mass of 4 kg and was lifted at a rate of 3 m/s. Which object had more kinetic energy while it was being lifted?

• 4 kg object

• 2 kg object

Tags

NGSS.HS-PS3-2

Two objects were lifted by a machine. One object had a mass of 2 kg, and was lifted at a speed of 2 m/s. The other had a mass of 4 kg and was lifted at a rate of 3 m/s. Which object had more potential energy when it was lifted to a distance of 10 m?

• 4 kg object

• 2 kg object

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-1

Relative to the ground, what is the gravitational potential energy of a 55 kg person who is at the top of the Sears Tower,a height of 443 m above the ground?

• 239021 J

• 5396850 J

• 3398650 J

• 4396850 J