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Some skateboarders use a structure called a half-pipe, like the one shown, to perform impressive tricks. Which of the positions will provide a skateboarder with the GREATEST potential energy?

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Tags

NGSS.MS-PS3-2

Some skateboarders use a structure called a half-pipe, like the one shown, to perform impressive tricks. Which of the positions will provide a skateboarder with the GREATEST kinetic energy?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Mechanical energy is the sum of two types of energy—kinetic energy and potential energy of position. Which of the following is an example of an object that has kinetic energy?

• a snail crawling across a leaf

• a computer monitor sitting on a desk

• a tightly wound spring in a windup toy

• a roller coaster car just before it goes downhill

Tags

NGSS.MS-PS3-1

Mechanical energy is the sum of two types of energy—kinetic energy and potential energy of position. Which of the following is an example of an object that has potential energy?

• a snail crawling across a leaf

• a computer monitor sitting on a desk

• a jumping windup toy

• a roller coaster car going downhill

Tags

NGSS.MS-PS3-2

The table shows the speed and height over time of a ball that starts at rest, then is dropped from the top of a building, which is 60 meters (m) tall. Use the table to answer any questions that follow.

At which time is the ball's potential energy at its maximum?

• 0.0 s

• 0.5 s

• 2.0 s

• 2.5 s

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-4

The table shows the speed and height over time of a ball that starts at rest, then is dropped from the top of a building, which is 60 meters (m) tall. Use the table to answer any questions that follow.

At which time is the ball's kinetic energy at its maximum?

• 0.0 s

• 0.5 s

• 2.0 s

• 2.5 s

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

The diagram illustrates four phases of a model rocket's flight. Use the diagram to answer any questions that follow.

When is the rocket's potential energy decreasing and its kinetic energy increasing?

• when the rocket's motor is burning and when the rocket is free falling

• when the rocket's motor is burning and when the rocket is ascending

• when the rocket is at the peak of flight, only

• when the rocket is free falling, only

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

The diagram illustrates four phases of a model rocket's flight. Use the diagram to answer any questions that follow.

When is the rocket's potential energy increasing and its kinetic energy decreasing?

• when the rocket's motor is burning and when the rocket is free falling

• when the rocket's motor is burning and when the rocket is ascending

• when the rocket is at the peak of flight, only

• when the rocket is free falling, only

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

NGSS.MS-PS3-5

Which of the following examples of a cheetah has the most kinetic energy?

• The cheetah that is sitting

• The cheetah that is running

• The cheetah that is eating

• The cheetah that is walking

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which of the following examples of a cheetah has the most potential energy?

• The cheetah that is sitting

• The cheetah that is running

• The cheetah that is eating

• The cheetah that is walking

Tags

NGSS.MS-PS3-2