Quiz about Science Fsa 8th grade review

Question 1

What is a physical property?

Accepted Answer

Allows the substance to remain the same.

Answer

Allows the substance to change into another substance and produce something new

Question 2

What is a Chemical Property?

Accepted Answer

Allows the substance to change into another substance and produce something new

Answer

Allows the substance to remain the same

Question 3

Which of the following is a chemical property?

A: Boiling Point

B: Melting Point

C: Electrical and thermal conductivity

D: Reactivity

E: Solubility

Accepted Answer

D

Answer

A

Answer

B

Answer

C

Answer

E

Question 4

Which of the following demonstrates a physical property?

Accepted Answer

Butter will become a liquid when placed into a hot pan

Answer

A bike will rust if it is left out in the rain.

Answer

Vinegar and baking soda will produce bubbles when they mix

Question 5

My friend Ezekiel is severely allergic to peanuts, how much peanuts can he have?

Accepted Answer

None

Answer

1 peanut

Answer

Jar of peanuts

Answer

1 spoonful of peanut butter

Question 6

Gold has a density of 19.3 g/cm3. Which substance is going to have a higher density than the rest?

Accepted Answer

Neither because they all have the same density.

Answer

Coin

Answer

Bar

Answer

Statue

Answer

Car

Question 7

What is the only differences between the substances above?

Accepted Answer

The volume of water

Answer

The density of the water

Answer

The boiling point of water

Answer

The melting point of water

Question 8

What is volume?

Accepted Answer

How much a substance takes up

Answer

Depth

Answer

Mass

Answer

Density

Question 9

Steel has a melting point of 1510 degrees Celsius. If all items would be placed into a big enough oven and the temperature increased to 1510 degrees, which item would melt first?

Accepted Answer

All would start melting at the same time because they are made up of the same substance

Answer

The nail because its smaller

Answer

The battle ship because it has the most area

Answer

The silverware because its flat and it melts faster

Question 10

Making toast involves many energy transformations. As the electricity is forced through the wires, the wires begin to heat up and glow very hot. It is these hot loops of wire that cause the bread to brown making your toast. Describe the energy transformations

Accepted Answer

Electrical energy-> Thermal energy-> Chemical energy

Answer

Chemical energy-> Electrical energy-> Mechanical energy

Answer

Thermal energy-> Mechanical energy-> Chemical energy

Answer

Electrical energy-> Chemical energy-> Mechanical energy

Question 11

The girl pedals the bike, which eventually produces steam that rises. What kind of energy transformation is taking place.

Accepted Answer

Chemical->Mechanical->

Electrical-> Thermal-> Mechanical.

Answer

Mechanical-> Electrical-> Thermal-> Mechanical

Answer

Mechanical-> Electrical-> Thermal-> Mechanical

Answer

Chemical-> Electrical-> Thermal-> Mechanical

Question 12

What is Mechanical energy?

Accepted Answer

Energy that is possessed by an object due to its motion or position

Answer

Energy that changes its physical appearance

Answer

Energy that changes chemically like its odor or state of matter

Question 13

What kind of energy transformation is represented in the system above?

Accepted Answer

Light-> Electrical-> Light

Answer

Mechanical-> Electrical-> Light

Answer

Light->Electrical-> Sound

Answer

Light->Chemical-> Electrical-> Sound

Question 14

An earthquake seeds out mechanical waves in all directions. These waves travel through different materials in the Earth. Properties of a wave change when it moves from one material to another. What property of a wave changes as it moves from one material to another

Accepted Answer

Wave speed

Answer

Wavelength

Answer

Wave frequency

Answer

Wave amplitude

Question 15

During a thunderstorm, you see the lighting before you hear the thunder. Which of the following explains this observation?

Accepted Answer

Light travels faster than sound

Answer

Light has a greater mass than sound

Answer

Sound has a longer wavelength than light

Answer

Sound and light travel at the same speed

Question 16

What happens to the pitch when frequency of a sound wave decreases?

Accepted Answer

It decreases by the same amount

Answer

It stays the same

Answer

It increases twice the amount

Answer

It increases by the same amount

Question 17

Which of the following changes will affect the speed of a wave through a medium?

Accepted Answer

A change in the material through which the wave travels

Answer

A change in the frequency of the wave

Answer

A change in the amplitude of the wave

Answer

The speed of a wave always remain the same regardless of the type of medium

Question 18

What kind of waves can travel through empty space?

Accepted Answer

Electromagnetic waves

Answer

Mechanical waves

Question 19

Earthquakes or seismic waves need a medium like the Earth to move its energy from one place to another. Earthquakes would be an example of a:

Accepted Answer

Mechanical waves

Answer

Electromagnetic waves

Question 20

Visible Light and Gamma Rays do not need a medium to travel from one place to another. Visible light and Gamma rays are examples of:

Accepted Answer

Electromagnetic Waves

Answer

Mechanical Waves

Question 21

Through which substance would light travel the slowest?

Accepted Answer

Solid

Answer

Gas

Answer

Liquid

Question 22

Through which substance would sound travel the slowest?

Accepted Answer

Gas

Answer

Liquid

Answer

Solid

Question 23

Light and Sound waves are passing through water. Which of the waves will travel faster?

Accepted Answer

Sound Waves

Answer

Light Waves

Question 24

A wave light is traveling from the air to water. What will happen to the speed of the light as it travels from one medium (Air) to the other medium (water)?

Accepted Answer

The light will slow down when it hits the water

Answer

The light will speed up when it hits the water

Answer

The speed of the light will remain the same

Question 25

The wave of light is traveling from a glass medium to a water medium. What will happen to the speed of light?

Accepted Answer

The light will speed up when it hits the water

Answer

The light will slow down when it hits the water

Answer

The speed of light will remain the same

Question 26

Identify which property of a wave is labeled F

Accepted Answer

Amplitude

Answer

Period

Answer

Frequency

Answer

Wavelength

Question 27

A boat going through the water experiences drag. What kind of force is drag?

Accepted Answer

Contact force

Answer

Non-Contact force

Question 28

A skateboard rolling down the street will experience Friction with the ground and eventually stop moving. What kind of force is friction?

Accepted Answer

Contact Force

Answer

Non-Contact Force

Question 29

A car is parked on the street. What type of force is the street pushing up against the car?

Accepted Answer

Normal Force

Answer

Drag

Answer

Electrical Force

Question 30

What two contact forces does the driver use to stop the car

Accepted Answer

Drag and Friction

Answer

Lift and Friction

Answer

Drag and Gravity

Answer

Applied force and Drag

Question 31

What force are his friends using to move the car

Accepted Answer

Applied force

Answer

Thrust

Answer

Drag

Answer

Friction

Question 32

The picture demonstrates what?

Accepted Answer

The movement of electrons as they go from negative to positive poles

Answer

The movement of protons as they go from positive to negative poles

Answer

The movement of electrons as they go from positive to negative poles

Question 33

As an astronaut travels from the surface of Earth to a position that is four times as far away from the center of Earth, based on the Law of Gravity which of the following statement is true?

Accepted Answer

Mass remains the same and the gravitational pull from Earth decreases

Answer

Mass decreases and the gravitational pull from Earth increases

Answer

Weight increases and the gravitational pull from Earth stays the same

Answer

Weight remains the same and the gravitational pull from Earth changes

Question 34

Which graph demonstrates a car that drove at a constant speed?

Accepted Answer

Graph A and B

Answer

Graph A

Answer

Graph B

Question 35

Which graph demonstrates a car that accelerated during the race?

Accepted Answer

Graph A and B

Answer

Graph A

Answer

Graph B

Question 36

What is the difference between mitosis and meiosis?

Accepted Answer

In mitosis, the products are identical to the parent cell, while in meiosis the products are different from the parent cells

Answer

Mitosis occurs in all of cells of plants and animals, while meiosis occurs in bacteria

Answer

In mitosis, one cell divides into two cells, while in meiosis two cells combine to make one cell

Answer

Mitosis involves separating the chromosomes, while meiosis only involves the cytoplasm of the cell

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