Practice Test

Question 1

Which shows the formula for converting from kelvins to degrees Celsius?

Revolt · Accepted Answer

D: degree cap c is equal to cap k minus 273

Question 2

Which action has a positive effect on air resources?

Revolt · Accepted Answer

C: walking to work or school

Question 3

An ice cube is dropped into a glass of milk at 20 times degree C Which statement explains the transfer of kinetic energy KE ?

Revolt · Accepted Answer

D: Because milk has higher  KE  than ice,  KE  is transferred from the milk to the molecules of ice.

Question 4

Which describes one way that renewable resources differ from nonrenewable resources?

Revolt · Accepted Answer

A: Renewable resources make cleaner energy.

Question 5

Which shows the temperatures of three substances, in order, from greatest to least?

Revolt · Accepted Answer

B: water, water vapor, ice

Question 6

Which defines the average kinetic energy of a system’s particles?

Revolt · Accepted Answer

A: temperature

Question 7

A 40 kilograms dog is sitting on top of a hillside and has a potential energy of 1 comma 568 cap j What is the height of the hillside? (Formula: cap p cap e is equal to mg h )

Revolt · Accepted Answer

B: 4 point 0 m

Question 8

Which statement describes one way that wind energy is different from energy from fossil fuels?

Revolt · Accepted Answer

A: Wind energy can be reproduced quickly.

Question 9

Which is an example of potential energy?

Revolt · Accepted Answer

D: a yo-yo in someone’s hand

Question 10

Which best defines energy?

Revolt · Accepted Answer

C: the ability to do work

Practice Test Answers

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