3rd Grade Motion and Matter Inv 1 Review

3rd Grade Motion and Matter Inv 1 Review

I-Check Review

Topics covered:

• Balanced and unbalanced forces

• The forces of magnetism, gravity and friction

• Pushes and pulls = forces that create motion

• All forces have STRENGTH and DIRECTION

• Adding more magnets creates a larger magnetic field

Multiple Choice

The magnets on the top are _______________________.

• repelling

• attracting

• not magnetized

• broken

Multiple Choice

The magnets on the bottom are....;

• static electricity

• not magnetized

• attracting

• repelling

Multiple Select

These magnets are repelling. What are the possible names of the poles of the BLUE ENDS of the magnets?

• North and North

• South and South

• North and South

Open Ended

These magnets are ATTRACTING. What are the names of the two poles that are attracting?

Multiple Choice

To repel means to move apart.

• True

• False

Multiple Choice

To attract means to come together.

• True

• False

Multiple Choice

These students have been playing Tug-of-War FOREVER and the rope is not moving. Are the forces balanced or unbalanced?

• unbalanced

• balanced

Multiple Choice

If the student on the right begins to pull with more force than the student on the left, which direction will the rope move?

• Up

• Down

• To the right

• To the left

Multiple Choice

The team on the right is pulling with 400 units of force. The team on the left is pulling with 300 units of force. Who is going to win?

• Left team

• Right team

• No one. The forces are balanced.

Multiple Choice

What type of force is the brother applying to the sister and the swing?

• Magnetic

• Gravity

• Push

• Pull

Multiple Choice

When I placed one magnet on the end of the ruler, a paper clip attracted from 3 cm away. Estimate how far away a paperclip would attract with 3 magnets on the end of the ruler.

• 1 cm

• 2 cm

• 5 cm

• 0 cm

Multiple Select

Which TWO forces are acting on these books?

• magnetism

• gravity

• heavy

• the force of the table

Fill in the Blank

When you push an object, the object moves ___________ from you.

Fill in the Blank

When you PULL an object, the object moves ____________ you.

Multiple Choice

The area of magnetic force around a magnet is known as its _____________.

• magnetic field

• magnetic declination

• magnetic fan lines

• magnetic tan lines

Multiple Choice

What happens when two north poles of a magnet are placed together?

• they repel

• they attract

• they cancel each other out

• the strength of the magnet is doubled

Multiple Choice

A ____________ is a push or a pull on an object.

• friction

• force

• magnet

• gravity

Multiple Choice

These forces are...

• Balanced

• Unbalanced

Multiple Choice

How will this object move?

• It won't move.

• It will move to the right.

• It will move to the left.

• It will move up.

Multiple Choice

When he pulls the rope down the flag goes

• up

• nowhere

• to Florida

• to the Sun

Multiple Choice

What happens when a paper clip is close to a magnet?

• the paper clip explodes

• the paper clip melts

• the paper clip comes closer

• the paper clip turns into ice cream

Multiple Choice

When I push my friend on the swing, why do they come back?

• gravity

• thermal energy

• magnetism

• light energy

Multiple Choice

When I push my friend on the swing, why do they come back?

• gravity

• thermal energy

• magnetism

• light energy