Unit 1 Lesson 1 Quiz - KE and PE

The bobsled is an event in the winter Olympics. In this event, each sled and its riders speed down an icy track. Which graph descriptions are correct based on the relationship between kinetic energy and mass, speed, and/or time? Choose the two that apply.

• a graph of mass vs. kinetic energy, with kinetic energy decreasing as mass increases

• a graph of speed vs. kinetic energy, with kinetic energy decreasing as time increases

• a graph of mass vs. kinetic energy, with kinetic energy increasing as mass increases

• a graph of time vs. kinetic energy, with kinetic energy increasing as time increases

• a graph of speed vs. kinetic energy, with kinetic energy increasing as speed increases

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NGSS.MS-PS3-1

A group of students is pushing three sleds down a hill in winter. The masses of each sled are shown in the data table. Which statement is true based on the data table?

• Sled 3 has double the kinetic energy of sled 2.

• Sled 3 has the greatest kinetic energy of all three sleds.

• Sled 3 has half the kinetic energy of sled 2.

• Sled 1 has half the kinetic energy of sled 2.

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NGSS.MS-PS3-1

NGSS.MS-PS3-5

Bonito has potential energy while he is in the starting blocks, getting ready to run his 5-kilometer race. Which three statements are true about his potential energy?

• It can do work.

• It is stored energy.

• It might be used later.

• It can be changed into kinetic energy.

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NGSS.MS-PS3-2

As height increases, what happens to gravitational potential energy (GPE)? Provide another example of this relationship. What can be inferred about Sophia’s kinetic energy if her GPE decreases?

• GPE increases; for example, a book on a higher shelf has more GPE; if Sophia’s GPE decreases, her kinetic energy increases.

• GPE decreases; for example, a ball on the ground has more GPE; if Sophia’s GPE decreases, her kinetic energy stays the same.

• GPE stays the same; for example, a car on a hill has less GPE; if Sophia’s GPE decreases, her kinetic energy decreases.

• GPE increases; for example, a rock on the ground has more GPE; if Sophia’s GPE decreases, her kinetic energy disappears.

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-2

NGSS.MS-PS3-4

Kevin is riding a bike after school and changes speed depending on his location. The speeds that he travels at different locations are shown in the data table. Which of the following statements are true based on the data table?

• His kinetic energy was halved from the park to the neighborhood.

• His kinetic energy quadrupled from the park to the neighborhood.

• He had the least kinetic energy on the bike path.

• He had the least kinetic energy in the park.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5