Conservation of Energy

Conservation of Energy

9th Grade

14 Qs

quiz-placeholder

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Conservation of Energy

Conservation of Energy

Assessment

Quiz

Physics

9th Grade

Hard

NGSS
HS-PS3-1, MS-PS3-2, HS-PS2-4

+6

Standards-aligned

Created by

g Custer

Used 99+ times

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14 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

There are three shelves in a closet. The first one is 1.5 meters above the floor, the second shelf is 2.0 meters above the floor, and the third shelf is 2.5 meters above the floor.


A 10 kg box rests on the first shelf. How much gravitational potential energy does the box have relative to the second shelf?

50 J

100 J

150 J

200 J

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

There are three shelves in a closet. The first one is 1.5 meters above the floor, the second shelf is 2.0 meters above the floor, and the third shelf is 2.5 meters above the floor.


The box is lifted to the third shelf. How much gravitational potential energy does the box have relative to the first shelf?

100 J

50 J

-50 J

150 J

Tags

NGSS.HS-PS3-1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

A roller coaster uses a motor to take a car to the top of its first hill. The roller coaster then travels down a 35 meter hill and to the top of the next hill. It travels with a speed of 15 m/s at the top of the second hill.


How high is the second hill? Assume no energy is lost to friction and the coaster starts from rest at the top of the first hill.

12.5 m

24 m

34 m

This cannot be determined without the mass of the car.

Tags

NGSS.HS-PS3-1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

In July 1971, Apollo 15 astronaut Dave Scott performed an experiment on the Moon. Scott held a feather and a hammer at the same height, and let them drop at exactly the same time. Both fell at the same rate and hit the ground at the same time.


At which time did the feather have the greatest kinetic energy?

time 1

time 2

time 3

both times 1 and 3

Tags

NGSS.HS-PS2-1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

In July 1971, Apollo 15 astronaut Dave Scott performed an experiment on the Moon. Scott held a feather and a hammer at the same height, and let them drop at exactly the same time. Both fell at the same rate and hit the ground at the same time.


At which time did the hammer have the greatest gravitational potential energy?

time 1

time 3

times 1 and 3

time 2

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

NGSS.MS-PS3-2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

In July 1971, Apollo 15 astronaut Dave Scott performed an experiment on the Moon. Scott held a feather and a hammer at the same height, and let them drop at exactly the same time. Both fell at the same rate and hit the ground at the same time.


Which of the following is true about the relationship between the gravitational potential energy and the kinetic energy of the hammer?

The kinetic energy + gravitational potential energy stays the same at all times.

The kinetic energy and potential energy are the same as each other at all times.

The kinetic energy at time 1 is equal to the gravitational potential energy at time 1.

The kinetic energy at time 3 is equal to the gravitational potential energy at time 3.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-2

NGSS.MS-PS3-5

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

An apartment building has two floors and a basement. The floors are 3.5 meters apart and the basement is 2.5 meters underground as shown.


A 100 kg man enters the apartment building at the ground floor and walks up to his second floor apartment. How much gravitational potential energy does he have relative to the ground? Use g = 10 m/s2.

350 J

700 J

3500 J

7000 J

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-1

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