Chap 4 Study Guide A

Question 1

_____ is the ability to do work?

Answer 1

energy

Question 2

The ability of a substance’s particles to move faster and expand without changing states is called _____?

Answer 2

thermal expansion

Question 3

Almost every substance ____ when heated and ____ when cooled?

Answer 3

expands / contracts

Question 4

Temperature is usually measured in degrees Fahrenheit or ______?

Answer 4

Celsius

Question 5

A _____ is the amount of thermal energy needed to raise the temperature of 1g of water 1 degree C

Answer 5

calorie

Question 6

The thermal energy of a substance is determined by its ____ and _____.

Answer 6

temperature and mass

Question 7

Heating a substance ____ thermal energy. The particles move _____and farther apart, causing the substance to change states.

Answer 7

Increase / faster

Question 8

Cooling a substances causes it to _____ thermal energy. the particles move ____ and are attracted to each other more causing the substance to change states.

Answer 8

Lose / less

Question 9

How does temperature affect thermal energy?

Answer 9

when it increased particles move faster and the substance has more thermal energy. When it decreased it moves slower and has less thermal energy.

Question 10

How does mass affect thermal energy?

Answer 10

The greater the mass of a substance the more thermal energy it has because it has more particles moving.

Question 11

Give an example of how thermal expansion has been used for good and wise stewardship in God’s world?

Answer 11

Engineers allow room and space between sections of bridges and sidewalks so they can expand when heated and contract when cold without causing cracking or buckling

Question 12

Stored energy , or energy that an object has because of its position or condition is called _____.

Answer 12

potential energy

Question 13

energy that an object has because of its motion is called _____

Answer 13

kinetic energy

Question 14

The total kinetic energy of the particles in a substance is called ____.

Answer 14

thermal energy

Question 15

The measurement of the average kinetic energy of the particles in a substance is called ___

Answer 15

termperature

Question 16

Thermal energy is measured in _____.

Answer 16

calories

Question 17

Temperature is measured with a ____

Answer 17

thermometer