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Chem Unit 2-Matter and Energy

Total questions: 61

Worksheet time: 42mins

Name
Class
Date
1.

1. A substance with definite shape and volume.

(a)  

2.

2. The total internal energy that can be transferred from one object to another.

(a)  

3.

3. The amount of heat necessary to increase the temperature of a one gram of water by one Kelvin.

(a)  

4.

4. The energy a body possesses due to its motion.

(a)  

5.

5. A measure of the average kinetic energy of the particles that make up an object.

(a)  

6.

6. Two or more elements that combine in a fixed proportion.

(a)  

7.

7. A mixture where the composition varies throughout the mixture.

(a)  

8.

8. A change that might significantly alter the appearance, but does not alter the chemical identity of the substance.

(a)  

9.

9. A substance with definite volume but indefinite shape.

(a)  

10.

10. The energy stored in an object, often due to position or state.

(a)  

11.

11. A substance with indefinite shape and volume.

(a)  

12.

12. A mixture where the composition is identical throughout the mixture.

(a)  

13.

13. A substance that cannot be turned into simpler substances by chemical or physical means.

(a)  

14.

14. Anything that has mass and volume.

(a)  

15.

15. The ability of an object to cause change to itself or surrounding, the ability to do work, or to produce heat.

(a)  

16.

16. A substance with the same properties of a gas, but composed of electrically charged particles.

(a)  

17.

17. A blend of pure substances where each substance retains its chemical identity.

(a)  

18.

18. The temperature necessary for an object to have no internal kinetic energy.

(a)  

19.

19. The smallest piece of an element that retains the elements chemical identity.

(a)  

20.

20. Any change that alters a substance's chemical identity.

(a)  

21.

2. In the SI system, temperature is measured in _?_.

(a)  

22.

3. In the SI system, heat and energy are measured in _?_.

(a)  

23.
4. One object goes up 1°C, a second object goes up 1°F. Which had a greater change in temperature?
a)
1°C
b)
1°F
c)
They went up the same amount.
24.
5. One object goes up 1°C, a second object goes up 1 K. Which had a greater change in temperature?
a)
1°C
b)
1K
c)
They went up the same amount.
25.
6. One object goes up 1 F, a second object goes up 1 K. Which had a greater change in temperature?
a)
1 K
b)
1 F
c)
They went up the same amount.
26.

7. One calorie = _?_ joules.

(a)  

27.

8. In the classification of matter tree diagram, matter is divided into what two categories?

(a)  

28.

9. The combination of compounds and elements are called _?_ on the matter tree diagram?

(a)  

29.

10. Convert 26.4 mi to km (correct sig figs)

(a)  

30.

11. How many pounds are approximately 226.796 grams? (correct sig figs)

(a)  

31.

12. A roller coaster at Silverwood soars through the air at 88.5 ft/sec. How fast is this in mph? (correct sig figs)

(a)  

32.

13. Post Falls, on average, gets more than 68 inches of snow each year. How many centimeters of snow does Post Falls get in a decade? (correct sig figs)

(a)  

33.
1. On the Kelvin scale, the lowest possible temperature is...
a)
0 K
b)
273 K
c)
32 K
d)
-273 K
34.
2. Which of the following is NOT a change of state?
a)
Melting
b)
Burning
c)
Freezing
d)
Boiling
35.
3. Which of the following is an example of a physical property?
a)
Flammability
b)
Density
c)
Tendency to rust
d)
All of these are chemical properties, not physical properties.
36.
4. Which of the following is a physical change?
a)
Cooking
b)
Burning
c)
Rusting
d)
Crushing
37.
5. Which scientist proved that heat is a form of Energy?
a)
Einstein
b)
Joule
c)
Lavoisier
d)
Kelvin (William Thomson)
38.
6. Which scientist showed that there is a coldest possible temperature?
a)
Einstein
b)
Joule
c)
Lavoisier
d)
Kelvin (William Thomson)
39.
7. Which scientist showed that matter is always conserved in chemical reactions?
a)
Einstein
b)
Joule
c)
Lavoisier
d)
Kelvin (William Thomson)
40.
8. Which of the following is an example of a homogeneous mixture?
a)
Oil and water
b)
Salt and pepper
c)
salt water
d)
All of these are heterogeneous mixtures.
41.
9. Which of the following is an example of a heterogeneous mixture?
a)
Sand in water
b)
Air
c)
salt water
d)
All of these are homogeneous mixtures.
42.
10. Which of the following is one way of separating a homogeneous mixture?
a)
Distillation
b)
Filtering
c)
Centrifuge
d)
Density column
43.
11. What is the boiling point of water on the Fahrenheit scale?
a)
100
b)
212
c)
273
d)
373
44.
12. What is the boiling point of water on the Kelvin scale?
a)
100
b)
212
c)
273
d)
373.15
45.
13. What is the freezing point of water on the Kelvin scale?
a)
100
b)
212
c)
273.15
d)
373
46.
14. Which of the following is an example of matter in the solid state.
a)
Ice
b)
water
c)
Air
d)
Candle flame
47.
15. Which of the following is an example of matter in the plasma state?
a)
Ice
b)
water
c)
Air
d)
Candle flame
48.
16. Which of the following has a greater amount of potential energy?
a)
1 kg of ice
b)
1 kg of water
c)
1 kg of water vapor
d)
All of these have the same amount of potential energy.
49.

Which of the following is NOT a physical property?

a)

Density

b)

Melting point

c)

Flammability

d)

Boiling point

50.

What is the melting point of ice on the Celsius scale?

a)

0°C

b)

32°C

c)

100°C

d)

273°C

51.

Which of the following is NOT a chemical change?

a)

Baking a cake

b)

Melting ice

c)

Rusting iron

d)

Burning wood

52.

Which of the following is NOT a method for separating mixtures?

a)

Distillation

b)

Filtration

c)

Evaporation

d)

Combustion

53.

Which of the following is an example of a chemical change?

a)

Melting ice

b)

Crushing a can

c)

Boiling water

d)

Burning wood

54.

Classify the following as Chemical Change or a Physical Change.

Categorize the following

Chopping wood

Ice cube melting

Steam from a shower

Burning wood

A bike rusting

Physical Change
Chemical Change
55.

Marina is using a metal spoon to stir her soup. Why does the spoon feel warm?

a)

Stirring creates heat energy in the spoon.

b)

Marina’s hand warms the spoon she is holding.

c)

Heat energy from the soup is transferred to the spoon.

d)

Heat energy from the spoon is transferred to the soup.

56.
Heat is the transfer of ___________ energy?
a)
kinetic
b)
sound
c)
mechanical
d)
thermal
57.

Evaluate the statement: "In a closed system, the total energy before and after a chemical reaction is the same." Justify your answer.

a)

True, because energy is conserved and only changes form.

b)

False, because energy is lost to the surroundings.

c)

True, because energy is created during the reaction.

d)

False, because energy is destroyed during the reaction.

58.

Label the change of states.

a)

condensation

b)

sublimation

c)

melting

d)

vaporization

e)

freezing

1
2
3
4
5
1)
2)
3)
4)
5)
59.
Question Image

Match the following

a)

Not well mixed and will easily separate

1.

heterogeneous

b)

Is well mixed and will NOT separate easily.

2.

homogeneous

c)

Is made of two or more substances, chemically combined.

3.

compound

d)

Is made of two or mores substances, not chemically combined.

4.

mixture

e)

Is made of only one type of element.

5.

element

60.

What type of matter is this?

a)

plasma

b)

solid

c)

liquid

d)

gas

1
1)
61.

Object 1 is ​ (a)   ​​

Object 2 is ​ (b)  

Object 3 is ​ (c)  

Choose from the below words
same density as water
less dense than water
more dense than water

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