Quiz about 7th Grade Physical Science MCAS Review

Question 1

Electrons have a: (7.MS-PS2-3)

Accepted Answer

Negative charge

Answer

Neutral charge

Answer

Positive charge

Question 2

Which material can be used as a conductor of electricity? (7.MS-PS2-3)

Accepted Answer

Foil

Answer

Rubber

Answer

Plastic

Answer

Ceramic

Question 3

A positive charge and a positive charge will _______. (7.MS-PS2-3)

Accepted Answer

Repel

Answer

Attract

Question 4

A _____________ makes it easy for electricity to flow through it. (7.MS-PS2-3)

Accepted Answer

Conductor

Answer

Insulator

Question 5

This is a picture of a simple electromagnet. How can the electromagnet be made stronger? (7.MS-PS2-3)

Accepted Answer

Add more coils of wire to the nail.

Answer

Use a smaller battery.

Answer

Reverse the poles of the magnet.

Answer

Remove all the coils and the nail.

Question 6

An electric field gets weaker the ____ it is to the charge. (7.MS-PS2-3)

Accepted Answer

farther away

Answer

closer

Question 7

Two like charges: (7.MS-PS2-3)

Accepted Answer

repel each other.

Answer

neutralize each other.

Answer

must be neutrons.

Answer

attract each other.

Question 8

Surrounding every magnet is a __________ __________. (7.MS-PS2-5.)

Accepted Answer

magnetic field

Answer

electrical current

Answer

another magnet

Answer

an enemy

Question 9

What is most likely to happen when the switch is closed? (7.MS-PS2-5.)

Accepted Answer

A magnetic field should be produced

Answer

The nail will rust

Answer

The battery will explode

Answer

The wire will catch on fire

Question 10

What is a complete path through which electric charges can flow called? (7.MS-PS2-5.)

Accepted Answer

electric circuit

Answer

magnetic pole

Answer

electric resistance

Answer

magnetic field

Question 11

As speed of an object increase, the kinetic energy ____________

(7.MS-PS3-2)

Accepted Answer

increases

Answer

decreases

Answer

stays the same

Question 12

As mass of an object increases, the kinetic energy ______________

(7.MS-PS3-2)

Accepted Answer

increases

Answer

decreases

Answer

stays the same

Question 13

The relationship between mass and kinetic energy is a _______. Note: Kinetic Energy = (1/2)(mass)*(velocity)²

(7.MS-PS3-2)

Accepted Answer

direct relationship 1:1

Answer

squared (exponentially increasing) relationship

Answer

unsteady relationship

Answer

good relationship

Question 14

The relationship between velocity and kinetic energy is a _______. Note: Kinetic Energy = (1/2)(mass)*(velocity)²

(7.MS-PS3-1)

Accepted Answer

squared (exponentially increasing) relationship

Answer

direct relationship 1:1

Answer

unsteady relationship

Answer

good relationship

Question 15

This is a graph that depicts what kind of relationship? (7.MS-PS3-1)

Accepted Answer

One to one (linear)

Answer

Squared (exponential)

Answer

Quadrilinear

Answer

Quintiliniar

Question 16

This graph depicts what kind of relationship? (7.MS-PS3-1)

Accepted Answer

Squared (exponential)

Answer

One to One (linear)

Answer

Linear

Answer

Bilinear

Question 17

which point has the most potential energy? (7.MS-PS3-2)

Accepted Answer

a

Answer

G

Answer

f

Answer

b

Question 18

When you stretch a rubber band, you are storing __________ energy. (7.MS-PS3-2)

Accepted Answer

potential

Answer

kinetic

Answer

none of the above

Answer

all of the above

Question 19

When an object is in motion, it has ___________ energy. (7.MS-PS3-1)

Accepted Answer

kinetic

Answer

potential

Answer

mechanical

Answer

movement

Question 20

What are the two factors that affect kinetic energy? (7.MS-PS3-1)

Accepted Answer

mass and speed

Answer

time and energy

Answer

power and mass

Answer

time and work

Question 21

When a pendulum swings, at which point is potential energy at its greatest? (7.MS-PS3-2)

Accepted Answer

1

Answer

2

Answer

3

Answer

4

Question 22

Gravitational potential energy depends on the ________ and ________ of the object. (7.MS-PS3-2)

Accepted Answer

Height and mass

Answer

Friction and movement

Answer

Mass and Movement

Answer

Height and Friction

Question 23

At what point does the diver have the greatest kinetic energy and the least potential energy? (7.MS-PS3-2)

Accepted Answer

4

Answer

1

Answer

2

Answer

3

Question 24

The formula for kinetic energy is: Kinetic Energy = (1/2)(mass)*(velocity)². Which of these would have the largest impact on an object's kinetic energy?

(7.MS-PS3-1)

Accepted Answer

Double the speed of the object

Answer

Double the mass of the object

Answer

Change the color of the object

Question 25

Which of these are types of potential energy?

(7.MS-PS3-1)

Accepted Answer

A roller coaster car at the top of a ride

Accepted Answer

A stretched elastic band

Accepted Answer

A fully charged battery

Answer

A car rolling on a flat road

Question 26

The baby chickens are kept warm from the heat lamps. This demonstrates what kind of heat transfer? (7.MS-PS3-6)

Accepted Answer

radiation

Answer

conduction

Answer

convection

Question 27

The transfer of thermal energy through a substance by direct contact is called___. (7.MS-PS3-6)

Accepted Answer

conduction

Answer

insulation

Answer

convection

Answer

radiation

Question 28

Heated air moves from baseboard heaters to the rest of a room in a process called:

(7.MS-PS3-6)

Accepted Answer

convection

Answer

conduction

Answer

radiation

Answer

insulation

Question 29

A material that does NOT conduct heat well is called a(n):

(7.MS-PS3-6)

Accepted Answer

insulator

Answer

conductor

Answer

metal

Answer

radiator

Question 30

TRUE/FALSE: During conduction, heat is transferred by the movement of currents within a fluid.

(7.MS-PS3-6)

Accepted Answer

FALSE, convection

Answer

TRUE

Answer

FALSE, radiation

Answer

FALSE, celsius

Question 31

Warm air over the beach rises while cooler dense air from over the ocean rushes in due to

(7.MS-PS3-6)

Accepted Answer

convection

Answer

conduction

Answer

radiation

Question 32

Mittens help keep your hands warm in winter because:

(7.MS-PS3-4)

Accepted Answer

They are insulators which helps keep heat from escaping or flowing

Answer

They are conductors of heat.

Answer

They are fuzzy.

Answer

They are conductors of heat energy.

Question 33

What happens to particles as they heat up?

(7.MS-PS3-5)

Accepted Answer

They speed up

Answer

They slow down

Answer

Nothing

Answer

They don't move

Question 34

Which of these materials would make the best insulator?

(7.MS-PS3-4)

Accepted Answer

Styrofoam

Answer

Aluminum

Answer

Copper

Answer

Metal

Answer

Water

Question 35

Which example below is an example of radiation?

(7.MS-PS3-6)

Accepted Answer

The Sun heating the Earth

Answer

Standing on a hot metal bridge

Answer

The attic is warmer than the basement

Answer

Touching hot sand with your feet

Question 36

Convection occurs in which of the locations below? CHOOSE THREE

(7.MS-PS3-6)

Accepted Answer

The ocean

Accepted Answer

The Earth's mantle

Accepted Answer

The atmosphere

Answer

The surface of the moon

Answer

Outer space

Question 37

The Gulf Stream is a current that brings warm ocean water from the south to the north.

(7.MS-PS3-6)

Accepted Answer

convection

Answer

conduction

Answer

radiation

Question 38

In this experiment, the WARM red dye and the COLD blue dye was placed in the water at the same time. The warm red dye rose to the top while the cold blue dye sank to the bottom. (7.MS-PS3-6)

Accepted Answer

convection

Answer

conduction

Answer

radiation

Question 39

Johnny accidentally grabbed the handle of the hot pot. (7.MS-PS3-6)

Accepted Answer

conduction

Answer

convection

Answer

radiation

Question 40

Heat always flows from _________ areas to ________ areas (7.MS-PS3-)

Accepted Answer

hotter to colder

Answer

colder to hotter

Answer

nicer to meaner

Answer

lighter to heavier

Question 41

_________________________ is a measure of the average kinetic energy of the particles in a material. (7.MS-PS3-4)

Accepted Answer

temperature

Answer

thermal

Answer

friction

Answer

expansion

Question 42

Which of the following statements best describes the flow of energy when a cold drink is left in a warm room for several hours? (7.MS-PS3-4)

Accepted Answer

Heat energy flows from the room to the lemonade until the lemonade and the room are the same temperature.

Answer

Cold energy flows from the lemonade to the room until the room is colder than the lemonade. B. C. D.

Answer

Heat energy flows from the room to the lemonade until the lemonade is warmer than the room.

Answer

Cold energy flows from the lemonade to the room until the lemonade and the room are the same temperature.

Question 43

What will most likely happen when thermal energy is removed from a liquid? (7.MS-PS3-5)

Accepted Answer

The temperature of the liquid will decrease

Answer

The mass of the liquid will decrease

Answer

The molecules of the liquid wll move faster

Answer

The molecules of the liquid stop moving

Question 44

Where does the ball have the greatest amount of most kinetic energy? (7.MS-PS3-7)

Accepted Answer

position 1

Answer

position 2

Answer

position 3

Answer

position 4

Answer

position 'start'

Question 45

In which of the following situations will some of the kinetic energy of the ball be converted into potential energy as the ball rolls?

7.MS-PS3-7

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 46

During which part of the bouncing ball's path was the most kinetic energy converted to potential energy?

7.MS-PS3-7

Accepted Answer

From point 1 to point 2

Answer

From start to point 1

Answer

From point 2 to point 3

Answer

From point 3 to point 4

Question 47

Which of these correctly describes the energy transfer in this gif? CHOOSE TWO (7.MS-PS3-7)

Accepted Answer

Potential energy is converted to kinetic energy when the trampoline is launching the dog upward

Accepted Answer

Potential energy is converted to kinetic energy when dog falls down toward the trampoline due to gravity

Answer

Potential energy is converted to kinetic energy when the dog is flying upward in the air

Answer

Potential energy is converted to kinetic energy when the dog is touching the trampoline and stretching it downward

7th Grade Physical Science MCAS Review

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