Potential and Kinetic Energy

Which of the following is a definition of motion?

• A change in position over time

• The speed and direction of an object

• The length of the path between points

• A location compared to other locations

A car is sitting on top of a ramp. As the car rolls down the ramp, the potential energy of the car decreases. What happens to the potential energy as the car moves?

• It is lost as gravitational energy

• It is converted to kinetic energy

• It is destroyed as the car moves

• It is used to make the car slow down

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

Mariah throws a baseball up in the air. It rises up in the air to a point, then starts to fall back to the ground. At what point is the kinetic energy greatest?

• When the baseball rising

• When the baseball falls

• When the baseball stops in the air

• When the baseball hits the ground

Which roller-coaster will be the most successful?

• A

• B

• C

• D

Tags

NGSS.MS-ETS1-2

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-5

The person and elephant are traveling from left to right. The second photo was taken a few seconds after the first. The trees are 5 meters apart. Who is traveling faster?

• The elephant is moving faster

• The person is walking faster

• They are the same speed

• They are keeping constant speed

What is the best estimate of this lion's speed? (The trees are 5 meters apart.)

• 5 m/s

• 10 m/s

• 15 m/s

• 30 m/s

Tags

NGSS.MS-PS3-1

A mass hanging from a spring moves up and down. The mass stops moving temporarily each time the spring is extended to its fullest at position 2 and each time it returns to its tight coil at position 4.

Which answer choice best describes the type of energy the spring has at Position 1?

• Potential Energy

• Kinetic Energy

• Both Potential and Kinetic Energy

• Neither Potential and Kinetic Energy

Tags

NGSS.MS-PS3-4

If you know the distance an object traveled in a certain amount of time, you can determine

• The size of the object

• The speed of the object

• The location of the object

• The mass of the object

An airplane leaves New York to fly to Los Angeles. It travels 3850 km in 5.5 hours. What is the average speed of the airplane?

• 700 km

• 700 hours

• 700 km/hour

• 7000 hours/km

A place or object used for comparison to determine if something is in motion is called:

• A position

• A reference point

• A constant

• Velocity