A student wanted to find out how to make an electromagnet stronger. The results of his experiment are listed in the table below. According to these data, which of the following does NOT make an electromagnet stronger?

increasing the number of tacks used

increasing the number of batteries that are connected

increasing the number of wire turns around the core

increasing the number of nails inside the core

The function of an electric motor is to change ____.

electrical energy to mechanical energy

chemical energy to electrical energy

electrical energy to chemical energy

mechanical energy to electrical energy

The function of a generator is to change ____.

mechanical energy to electrical energy

chemical energy to electrical energy

electrical energy to chemical energy

electrical energy to mechanical energy

What is structure B? What happens to it when energy flows?

It is a coil of wire with an iron core that will become an electromagnet when energy flows through it.

It is a permanent magnet, nothing happens when the energy flows.

Is is a motor that spins faster when energy flows through it.

It is the energy sources that increases in power as more energy flows through it.

Does the figure represent a motor or generator? Explain your answer.

Motor; mechanical energy is being produced from the electrical energy of the batery

generator; electrical energy is being converted from the motion of the fan

Generator; mechanical energy is being converted from electrical energy of the battery

Motor; electric energy is being converted from the mechanical energy of the fan

What happens when to the rotation of the coil (in the figure above) if the current flowing through it is increased?

The rotation will also increase (spin faster)

The rotation will decrease (spin slower)

A magnetic compass is placed near an insulated copper wire. When the wire is connected to a battery and a current is created, the compass needle moves and changes its position. Which is the best explanation for the production of a force that causes the needle to move?

The current in the wire produces a magnetic field that exerts the force on the compass needle

The copper wire magnetizes the compass needle and exerts the force on the compass needle.

The compass needle magnetizes the copper wire and exerts the force on the compass needle.

The insulation on the wire becomes charged, which exerts the force on the compass needle.

What effect does the transformer below have on the voltage?

It has no effect on the voltage

An electron moving at constant speed produces

bot magnetic and electric field

neither a magnetic nor an electric field

When the heat source is removed from a fluid, convection currents in the fluid will

continue at the same rate forever

How did scientists discover that rocks farther away from the mid-ocean ridge were older than those closer to it?

by mapping rocks on the sea floor using sonar and magnetic alignment

by observing eruptions of molten material on the sea floor

by determining the age of rock samples obtained by drilling on the sea floor

by measuring how fast sea-floor spreading occurs

What feature occurs at Y, and how does it form?

Y is an ocean trench formed by subduction of one plate under another

Y is a mountain formed by volcanic activity

Y is a volcanic island formed by the ocean floor melting under the continent

Y is the ocean floor formed by sea floor spreading

What is happening at Z?

The edge of plate B is plunging beneath plate C and melting in the mantle

The continent is forcing the ocean floor up into the mountains

Plate C is pushing up on plate B

The edge of plate A is pushing B into C

What feature occurs at X and how does it form?

X is a mid-ocean ridge formed by sea-floor spreading

X is an island arc formed by subduction

X is a trench formed by sea-floor spreading

X is a mid-ocean ridge formed by subduction

Which of the following was NOT a piece of evidence used by Wegener to support the idea of continental drift?

a newly discovered force that he believed caused the continents to move

matching reptile fossils found in South America and Africa

matching plant fossils found on five different continents

matching rock types and mountain belts on four different continents

What key piece of evidence was discovered that supported Harry Hess’ hypothesis of how continents move?

the discovery of magnetic reversal patterns in rocks on either side of mid-ocean ridges

the discovery of matching fossils on different continents

the discovery of a new force that keeps the continents from moving

the discovery of new unexplored mountain ranges

Most geologists rejected Alfred Wegener’s idea of continental drift because

Wegener could not identify a force that could move the continents

Wegener was interested in what Earth was like millions of years ago

Wegener used several different types of evidence to support his hypothesis

Most geologists think that the movement of Earth’s plates is caused by

convection currents in the mantle

found only in the Pacific ocean

located mostly along coastlines

Magnetism and Earth Science

Quiz

•

Physics

•

9th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-ESS2-3, MS-PS2-3, MS-PS2-5

+10

Standards-aligned

Justine Kramer

Used 41+ times

FREE Resource

32 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The location of the strongest magnetic forces is the ____.

electromagnets

magnetic domains

magnetic fields

magnetic poles

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which diagram best represents a magnetic field between two magnetic fields?

A

B

C

D

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following situations is NOT true for magnets?

like poles repel each other

unlike poles repel each other

north poles repel each other

A North pole and a South pole will attract each other

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Electromagnetic induction is the process of producing an electric current by moving a loop of wire ____.

through a magnetic field

through a magnetic domain

around an iron core

around a magnetic pole

Tags

NGSS.HS-PS2-5

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the diagram below, a steel paper clip is attached to a string, which is attached to a table. The clip remains suspended beneath a magnet.
As the magnet is lifted, the paper clip begins to fall as a result of

a decrease in the magnetic field strength near the clip.

a decrease in the magnetic properties of the clip.

an increase in the potential energy of the clip.

an increase in the gravitational field strength near the magnet.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-5

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The diagram below shows the magnetic field surrounding a bar magnet. The closer together the lines of force, the stronger the magnetic field. According to the diagram, where is the magnetic field the strongest?

around the North pole

around the South Pole

around both poles

in the center of the magnet

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which compass needle orientation in the figure above might correctly describe the magnet’s field at that point?

a

b

c

d

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

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Magnetism and Earth Science

32 questions

The location of the strongest magnetic forces is the ____.

Which diagram best represents a magnetic field between two magnetic fields?

Which of the following situations is NOT true for magnets?

Electromagnetic induction is the process of producing an electric current by moving a loop of wire ____.

In the diagram below, a steel paper clip is attached to a string, which is attached to a table. The clip remains suspended beneath a magnet.As the magnet is lifted, the paper clip begins to fall as a result of

The diagram below shows the magnetic field surrounding a bar magnet. The closer together the lines of force, the stronger the magnetic field. According to the diagram, where is the magnetic field the strongest?

Which compass needle orientation in the figure above might correctly describe the magnet’s field at that point?

A student wanted to find out how to make an electromagnet stronger. The results of his experiment are listed in the table below. According to these data, which of the following does NOT make an electromagnet stronger?

The function of an electric motor is to change ____.

The function of a generator is to change ____.

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In the diagram below, a steel paper clip is attached to a string, which is attached to a table. The clip remains suspended beneath a magnet.
As the magnet is lifted, the paper clip begins to fall as a result of

A student wanted to find out how to make an electromagnet stronger. The results of his experiment are listed in the table below.
According to these data, which of the following does NOT make an electromagnet stronger?