Noah, Henry, and Arjun are playing with magnets. What is true about the magnets they are playing with?

When Noah brings opposite ends of two magnets together, they PULL towards each other.

When Henry brings opposite ends of two magnets together, they PUSH apart.

Arjun notices that both ends of a magnet act the same way.

Henry observes that the magnetic force never changes - it is always the same.

James, Grace, and Priya are racing their cars down a straight road. What factors would affect the kinetic energy of their cars? Choose one answer below.

Both the mass and speed of the cars

Kinetic energy is not affected by either the mass or speed of the cars

Avery, Aiden, and Mia are observing a car splashing through a puddle. They wonder, how would the distance that the water splash travels change if the car had more kinetic energy?

The distance of the water splash would increase.

The distance of the water splash would stay the same.

The distance of the water splash would decrease.

Kinetic energy would not effect the distance at all.

Hannah, Mia, and Mason are having a car race. They are trying to figure out which car would make the biggest splash when it hits a water body. What do you think?

Fast cars with more mass, like the one Mia is driving

Fast cars with less mass, like the one Hannah is driving

Slow cars with less mass, like the one Mason is driving

Daniel is setting up a toy car race track for Mia and Elijah. The gravitational potential (stored) energy needed to start this system is: __________ .

In the toy car, because it starts at a height above the floor.

In the ball, because it starts at a height above the floor

In the ball, because it starts on the ground.

In the track, because it starts on the ground.

Michael and Olivia are playing with a toy car on a ramp. How could they increase the potential energy in the system?

Start the car higher off the ground

Start the car lower to the ground

Ethan pushes the car down the ramp

Start the ball higher off the ground

Sophia and Daniel are playing with a toy car on a ramp. How could they decrease the potential energy in the system?

Start the car lower to the ground

Start the car higher off the ground

Start the ball higher off the ground

As Michael's toy car rolls down the ramp in his backyard...

potential energy turns to kinetic energy

kinetic energy turns to potential energy

magnetic energy turns to potential energy

kinetic energy is transferred to the ramp

Mason and Maya are playing with a toy car on a ramp. What causes the toy car's potential energy to turn into kinetic energy as David releases it down the ramp?

The force of gravity in Earth’s gravitational field

The force between the car and the ramp

The force of the ramp on the car

The force of the car on the ball

Hannah and Emma are playing with a toy car and a ball. What evidence can you observe that energy is being transferred (flows from one object to another)?

The ball moves after the toy car collides with it.

The ramp they are using has a steep slope.

As the toy car moves down the track, it loses height.

Abigail's toy car's potential energy is transformed to kinetic energy when

The car begins moving down the ramp

Abigail places the car on top of the ramp

Kai leaves the car sitting on the ramp

Abigail is playing with her toy car on a ramp. When is the kinetic energy transferred?

When the car hits Emma's ball and rolls it

When the car begins to roll down the ramp

When Olivia's ball stays sitting on the ground

When the car sits in front of the ramp

Charlotte, Daniel, and Benjamin were camping. They had a shake flashlight with them. Charlotte noticed that when she shook the flashlight, it shone brighter for longer. Why did this happen?

If Charlotte put more energy into the flashlight by shaking it more, she would get more light out.

If Charlotte put more energy into the flashlight by shaking it more, she would get less light out.

It doesn't matter how much energy Charlotte put into the flashlight - it would always shine the same amount

Noah, Grace, and David are experimenting with a shake flashlight. They wonder what would happen if the magnet inside the flashlight were removed. According to their hypothesis, the energy output of the system would:

Not generate any electrical energy.

Generate more electrical energy.

Generate less electrical energy.

Removal of the magnet would not change anything.

Zoe, Priya, and Aiden are camping and they have a shake flashlight. They are curious to know why a magnet is used in the shake flashlight system. The correct reason is:

The magnetic force PUSHES electrons in the copper coil to the light bulb.

The magnetic force PULLS the copper to the bulb

The magnetic force by itself changes EE to KE.

Magnets are just cool and fun to play with.

7.1 Test Review

Authored by Megan Doorlag

Science

7th Grade

NGSS covered

Used 15+ times

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30 questions

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Avery and Rohan are playing with magnets. As they bring their magnets closer, they notice that the force between the magnets ________.

Increases

Decreases

Stays the same

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Rohan, Elijah, and James are experimenting with different magnets. They notice that some magnets seem to pull objects more strongly than others. True or false: This is because some magnets are stronger than others, which makes their force stronger.

True

False

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Aiden and Harper are playing with two magnets. Aiden has a weaker magnet. Compared to Mason's magnet, Aiden's magnet has a ________ magnetic force.

Stronger

Weaker

Normal

Tags

NGSS.MS-PS2-3

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which arrows would show the correct forces?

Magnets do not have forces between them.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-3

NGSS.MS-PS2-5

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Luna and Elijah are playing with magnets. As they move the magnets farther away from each other, they notice that the force between the magnets ________.

Increases

Decreases

Stays the same

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Aria, Grace, and Luna are experimenting with magnets in their science class. They want to increase the magnetic forces pulling their magnets together. Which action(s) should they take?

Push the magnets closer together

Pull the magnets farther away

Do nothing - the magnetic force increases over time by itself

Turn the magnets to the side - not standing up

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

NGSS.MS-PS2-3

NGSS.MS-PS2-5

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Scarlett and Samuel are playing with two magnets. What would happen to these magnets as Scarlett moves them closer to each other?

The magnets would PUSH apart

The magnets would PULL together

Nothing - magnets do not interact

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

NGSS.MS-PS2-5

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7.1 Test Review

Avery and Rohan are playing with magnets. As they bring their magnets closer, they notice that the force between the magnets ________.

Rohan, Elijah, and James are experimenting with different magnets. They notice that some magnets seem to pull objects more strongly than others. True or false: This is because some magnets are stronger than others, which makes their force stronger.

Aiden and Harper are playing with two magnets. Aiden has a weaker magnet. Compared to Mason's magnet, Aiden's magnet has a ________ magnetic force.

Which arrows would show the correct forces?

Luna and Elijah are playing with magnets. As they move the magnets farther away from each other, they notice that the force between the magnets ________.

Aria, Grace, and Luna are experimenting with magnets in their science class. They want to increase the magnetic forces pulling their magnets together. Which action(s) should they take?

Scarlett and Samuel are playing with two magnets. What would happen to these magnets as Scarlett moves them closer to each other?

Aiden and Mia are playing with two magnets. What would happen to the magnets as Aiden moves his magnet closer to Mia's magnet?

Noah, Henry, and Arjun are playing with magnets. What is true about the magnets they are playing with?

James, Grace, and Priya are racing their cars down a straight road. What factors would affect the kinetic energy of their cars? Choose one answer below.

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