G7A T3 U1M3L1 Magnetic forces

Learning Objective

Examine systems of magnets to understand stored (potential) energy.

Drag and Drop

The magnetic ​

Placeholder

is the ​

Placeholder

around a magnet where there is a magnetic ​

Placeholder

.

Drag these tiles and drop them in the correct blank above

field

space

force

compass

Drag and Drop

The magnetic field is ​

Placeholder

at 1.

The magnetic field is ​

Placeholder

at 2.

The magnetic field is ​

Placeholder

at 3.

The magnetic field is ​

Placeholder

at 4.

Drag these tiles and drop them in the correct blank above

the strongest

strong

weak

the weakest

Categorize

Options (4)

North geographic pole

South geographic pole

South magnetic pole

North magnetic pole

Organize these options into the right categories

1

2

Match

Match the following

• Kinetic energy

• Potential energy

• Magnetic field

Energy due to motion

Stored energy due to position

Space around a magnet where force exists

• Energy due to motion

• Stored energy due to position

• Space around a magnet where force exists

Multiple Choice

We observed signs of change in energy when magnets changed their motion or position.

• True

• False

Dropdown

When the 2 magnets attracted each other, they had ​

Select answer

energy to move closer together, which ​

Select answer

their ​

Select answer

energy.

Multiple Choice

Which picture shows magnets with the greatest magnetic potential energy?

Match

Match the following

• Magnetic potential energy

• Similar poles

• Opposite poles

Stored energy due to poles' positions

Have more energy when they're CLOSE

Have more energy when they're far apart

• Stored energy due to poles' positions

• Have more energy when they're CLOSE

• Have more energy when they're far apart

Drag and Drop

Work is the ​

Placeholder

of energy to an object by a ​

Placeholder

that makes the object move in the ​

Placeholder

of the force.

Drag these tiles and drop them in the correct blank above

transfer

force

same direction

opposite direction

Fill in the Blank

The magnetic force does _______ on the object when it causes it to move.

Match

Match the following (page 115)

• Magnet

• Magnetic material

• Ferromagnetic elements

Object attracts magnetic materials

Contains ferromagnetic elements

iron, nickel, cobalt

• Object attracts magnetic materials

• Contains ferromagnetic elements

• iron, nickel, cobalt

​Pages 124 + 125

Multiple Select

Why nonmagnetic materials cannot be made into magnets? (2)

• The random magnetic fields combine with each other resulting in magnetic properties.

• Because the magnetic fields of the atoms point in many directions.

• Because the magnetic fields of the atoms point to the same directions.

• The random magnetic fields cancel each other resulting in nonmagnetic properties.

Fill in the Blank

A ______ ______ is a region in a magnetic material in which the magnetic fields of the atoms all point in the ______ direction.

Multiple Choice

All magnetic materials are magnets.

• True

• False

Open Ended

Why the nail is not a magnet even though it is a magnetic material?

Fill in the Blank

A magnetic material becomes a magnet when the magnetic fields of the domains ____ __ in the ______ direction.

Labelling

Label the picture

Drag labels to their correct position on the image

Temporary magnet

Permanent magnet

Match

Match the following

• Permanent magnet

• Temporary magnet

• Ferromagnetic elements

Domains remain lined up.

Domains lose the lining after a while.

iron, nickel, cobalt

• Domains remain lined up.

• Domains lose the lining after a while.

• iron, nickel, cobalt

​Word Bank

• Permanent.

• Temporary.

• Attract.

• Repel.

• Far apart.

• Close together.

• Lined up.

• Removed.

• Different (2).

• Point.

• Field.

• Magnetic.

• Nonmagnetic.

• Ferromagnetic (2).

• Magnetic domains.

• Nickel.

• Cobalt.

• Not.

• Domains.

• Space around a magnet where there is a magnetic force.

Multiple Choice

The correct answer is

• A

• B

• C

• D

Multiple Choice

The correct answer is

• A

• B

• C

• D

Multiple Choice

The correct answer is

• A

• B

• C

• D