Final Review Questions 1-28

Question 1

What two things does matter have?

Answer 1

Mass and volume

Question 2

What is mass?

Answer 2

How much stuff is inside a particular material.

Question 3

Which is denser a one-inch block of gold or a one-inch block of wood?

Answer 3

The cube of gold

Question 4

What are the three states of matter?

Answer 4

Solid, liquid, and gas

Question 5

In which state of matter are molecules most active?

Answer 5

Gas

Question 6

In which state of matter are molecules least active?

Answer 6

Solid

Question 7

Which two states of matter do not have a particular form or shape but take on the shape of their container?

Answer 7

Gas and liquid.

Question 8

What do we call the point at which a solid becomes a liquid?

Answer 8

Melting point.

Question 9

What do we call the point at which a liquid becomes a gas?

Answer 9

Boiling point.

Question 10

What temperature is the freezing point of water?

Answer 10

32 F

Question 11

What temperature is the boiling point of water?

Answer 11

212 F

Question 12

What is an atom?

Answer 12

The smallest particle of an element that still keeps the properties of that element.

Question 13

What is an element?

Answer 13

A substance that contains only one kind of atom.

Question 14

What is the charge of a proton?

Answer 14

Positive

Question 15

What is the charge of an electron?

Answer 15

Negative

Question 16

What is the charge of a neutron?

Answer 16

Neutral

Question 17

What do we call a solid with a regular repeating arrangement of atoms?

Answer 17

A crystal.

Question 18

Which kind of polymer is widely used because it is light, easy to shape and can be recycled and remolded into other things?

Answer 18

Plastic.

Question 19

Which kind of reaction changes a substance into a different substance?

Answer 19

Chemical reaction

Question 20

Which kind of reaction changes only the form or appearance of a substance?

Answer 20

A physical reaction

Question 21

True or false: A base tastes like vinegar and corrodes metal?

Answer 21

False

Question 22

What do we call a mixture in which the individual parts cannot be seen as separate?

Answer 22

Homogeneous mixture

Question 23

What do we a call a mixture in which the individual parts can easily be seen?

Answer 23

Heterogeneous mixture

Question 24

Which law states that objects at rest tend to stay at rest and objects in motion tend to stay in motion in a straight line unless acted upon by force?

Answer 24

Newton’s first law of motion.

Question 25

Which law states that for every action there is an equal and opposite reaction?

Answer 25

Newton’s third law of motion.

Question 26

True or False: Friction is a force that resists movement between 2 objects?

Answer 26

True

Question 27

What does a lubricant do?

Answer 27

A substance that reduces friction.

Question 28

What is the law of universal gravitation?

Answer 28

The law that tells us all objects are attracted to other objects according to their mass and distance.