Quiz about 7th Grade Mid Term Review

Question 1

What are the three states of matter?

Accepted Answer

solid, liquid, and gas

Answer

solid, water, and gas

Answer

wood, liquid, and gas

Answer

solid, liquid, and helium

Question 2

What is one way matter change states?

Accepted Answer

heat is added

Answer

matter loses mass

Answer

it doesn't change

Answer

by doing nothing

Question 3

__________ are the building blocks of life.

Accepted Answer

atoms

Answer

solids

Answer

gases

Answer

nutrients

Question 4

Solids have a definite _______________.

Accepted Answer

shape

Answer

smell

Answer

picture

Answer

sound

Question 5

The amount of matter something contains is its ______________.

Accepted Answer

mass

Answer

gas

Answer

solid

Answer

weight

Question 6

________________ is anything that has mass and takes up space.

Accepted Answer

matter

Answer

volume

Answer

mass

Answer

weight

Question 7

______________ does not have a definite shape or volume.

Accepted Answer

gas

Answer

liquid

Answer

solid

Question 8

I am the smallest whole particle of matter.

Accepted Answer

atom

Answer

compound

Answer

molecule

Answer

mixture

Question 9

I am two or more atoms chemically bonded.

Accepted Answer

molecule

Answer

atom

Answer

mixture

Question 10

Texture, color, states of matter, flexibility, freezing & melting points

Accepted Answer

Physical Properties

Answer

Chemical Properties

Answer

States of Mass

Answer

Scientific matterology

Question 11

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

Accepted Answer

rusting

Answer

melting

Answer

bending a paper clip

Answer

boiling water

Question 12

Which 2 kinds of particles make up the nucleus of an atom?

Accepted Answer

protons and neutrons

Answer

electrons and neutrons

Answer

electrons and nuclei

Answer

protons and kryptons

Question 13

Which particle is equal to the Atomic Number

Accepted Answer

# of protons

Answer

# of electrons

Answer

# of neutrons

Question 14

Which particle carries a negative charge?

Accepted Answer

electrons

Answer

protons

Answer

neutrons

Question 15

When a gas turns into a liquid, it is called ___________________.

Accepted Answer

Condensation

Answer

Evaporation

Answer

Melting

Answer

Freezing

Question 16

The ability of a metal to allow heat or electricity to pass through it.

Accepted Answer

conductivity

Answer

insulator

Answer

mass

Answer

density

Question 17

In an endothermic reaction, heat is ...

Accepted Answer

taken in or absorbed

Answer

given out or released

Question 18

Baking bread and cooking an egg are examples of....?

Accepted Answer

Endothermic processes

Answer

Exothermic processess

Answer

None of these

Question 19

Exothermic reactions...

Accepted Answer

Release energy

Answer

Absorb energy

Answer

Release Color

Answer

Absorb Color

Question 20

Balance this equation...
HgO --> Hg + O₂

Accepted Answer

2HgO --> 2Hg + O₂

Answer

It is balanced

Answer

2HgO --> Hg + O₂

Answer

I don't know...Oh well!

Question 21

Ice melting

Accepted Answer

Physical Change

Answer

Chemical Change

Question 22

What happens in ALL chemical changes?

Accepted Answer

A new substance is formed

Answer

Change in state of matter

Answer

Bubbles are produced

Answer

An explosion

Question 23

In reactions, products must be equal to..

Accepted Answer

Reactants

Answer

Products

Answer

Starters

Answer

Enders

Question 24

According to the law of conservation of mass, how does the amount of each element on the product side compare to each element on the reactant side?

Accepted Answer

The amount of atoms on each side is equal

Answer

The amount of atoms on the product side is greater

Answer

The amount of atoms on the reactant side is greater

Answer

Depends on the reaction

Question 25

In chemical reactions, what does the principle of conservation of mass mean?

Accepted Answer

Matter is not created or destroyed.

Answer

The total mass of the reactants is greater than the total mass of the products.

Answer

The total mass of the reactants is less than the total mass of the products.

Answer

Matter is not changed.

Question 26

Plants need ________ for photosynthesis

Accepted Answer

carbon dioxide

Answer

oxygen

Answer

soil

Answer

sugar

Question 27

What are the products of photosynthesis?

Accepted Answer

oxygen and glucose

Answer

water and carbon dioxide

Answer

oxygen and carbon dioxide

Answer

oxygen and water

Question 28

What are the products of photosynthesis?

Accepted Answer

Glucose and oxygen

Answer

Carbon dioxide and water

Answer

Carbon dioxide and oxygen

Answer

Glucose and water

Question 29

Which statement about photosynthesis is correct?

Accepted Answer

Plants get the energy they need for photosynthesis from sunlight.

Answer

Plants get the energy they need for photosynthesis from water.

Answer

Plants get the energy they need for photosynthesis from soil.

Answer

Plants do not require energy to perform photosynthesis.

Question 30

Where does cellular respiration take place in the cell?

Accepted Answer

Mitochondria

Answer

Cell Membrane

Answer

Nucleus

Answer

Vacuole

Question 31

What is the purpose of photosynthesis?

Accepted Answer

make glucose

Answer

make ATP

Answer

make light

Answer

release carbon dioxide

Question 32

What are the reactants in the equation for cellular respiration?

Accepted Answer

glucose and oxygen

Answer

oxygen and lactic acid

Answer

carbon dioxide and water

Answer

water and glucose

Question 33

Cellular Respiration's goal is to

Accepted Answer

make ATP

Answer

make water

Answer

make glucose

Answer

make  oxygen

Question 34

What is cellular respiration?

Accepted Answer

the breakdown of glucose  to release ATP

Answer

the breakdown of glucose to release NADH

Answer

the breakdown of glucose to release FADH

Answer

the breakdown of glucose to release carbon

Question 35

F=ma

Accepted Answer

Newton's
2nd
Law of Motion

Answer

Newton's
1st
Law of Motion

Answer

Newton's
3rd
Law of Motion

Question 36

The Law of Inertia

Accepted Answer

Newton's
1st
Law of Motion

Answer

Newton's
2nd
Law of Motion

Answer

Newton's
3rd
Law of Motion

Question 37

An automobile you are riding in suddenly stops, but you continue to go forward.

Accepted Answer

Newton's
1st
Law of Motion

Answer

Newton's
2nd
Law of Motion

Answer

Newton's
3rd
Law of Motion

Question 38

A rocket in outer space continues to move.

Accepted Answer

Newton's
1st
Law of Motion

Answer

Newton's
2nd
Law of Motion

Answer

Newton's
3rd
Law of Motion

Question 39

A skater pushes another skater forward, but the one pushing moves backwards.

Accepted Answer

Newton's
3rd
Law of Motion

Answer

Newton's
1st
Law of Motion

Answer

Newton's
2nd
Law of Motion

Question 40

The harder you hit a baseball, the faster it accelerates.

Accepted Answer

Newton's
2nd
Law of Motion

Answer

Newton's
1st
Law of Motion

Answer

Newton's
3rd
Law of Motion

Question 41

The acceleration of a 4 kg bowling ball will be greater than the acceleration of a 6 kg bowling ball if the same force is applied to both.

Accepted Answer

Newton's
2nd
Law of Motion

Answer

Newton's
1st
Law of Motion

Answer

Newton's
3rd
Law of Motion

Question 42

As the fuel in a rocket ignites, the force of gas expansion and explosion pushes out the back of the rocket and pushes the rocket forward.

Accepted Answer

Newton's
3rd
Law of Motion

Answer

Newton's
1st
Law of Motion

Answer

Newton's
2nd
Law of Motion

Question 43

You step from a boat to a dock.  The boat moves backwards as you move forwards and you fall in the water.

Accepted Answer

Newton's
3rd
Law of Motion

Answer

Newton's
1st
Law of Motion

Answer

Newton's
2nd
Law of Motion

Question 44

You slide towards the window when a car makes a sudden turn.

Accepted Answer

Newton's
1st
Law of Motion

Answer

Newton's
2nd
Law of Motion

Answer

Newton's
3rd
Law of Motion

Question 45

A swimmer pushes water back with her arms but her body moves forward.

Accepted Answer

Newton's
3rd
Law of Motion

Answer

Newton's
1st
Law of Motion

Answer

Newton's
2nd
Law of Motion

Question 46

What is the unit of measurement for force?

Accepted Answer

Newtons

Answer

AMP

Answer

Seconds

Answer

Miles

Question 47

Which force produces a change in motion?

Accepted Answer

unbalanced force

Answer

balanced force

Answer

frictional force

Question 48

The soccer ball is at rest until an unbalanced force is applied to it.

Accepted Answer

1st Law

Answer

2nd Law

Answer

3rd Law

Question 49

A 20 kg bike accelerates at 10 m/s². what was the force?

Accepted Answer

200 Newtons

Answer

25 Newtons

Answer

20 Newtons

Answer

10 Newtons

Question 50

True or False: In order for a moving object to change its speed or direction, an unbalanced force must act on it.

Accepted Answer

True

Answer

False

Question 51

What is the relationship between mass and inertia?

Accepted Answer

The greater an object's mass, the more inertia it has.

Answer

The greater an object's mass, the less inertia it has.

Answer

The smaller an object's mass, the more inertia it has.

Answer

There is no relationship between mass and inertia.

Question 52

Balanced or Unbalanced?

Accepted Answer

Unbalanced

Answer

Balanced

Question 53

How much force is needed to accelerate a 25kg bowling ball at 2m/s².

Accepted Answer

50N

Answer

5N

Answer

12.5N

Answer

100N

Question 54

What is the smallest particle in an atom?

Accepted Answer

electron

Answer

proton

Answer

krypton

Answer

neutron

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