Chapter 2 Balancing Forces

Does the magnet hold the paper clip through 50 pieces of paper?

• yes

• no

Tags

NGSS.MS-PS2-5

Why do you think the magnet does not hold 50 pieces of paper?

• The magnet is round.

• The magnet is too weak to hold through 50 sheets of paper.

• The magnet is turned off.

Tags

NGSS.MS-PS2-5

What question could these students be investigating?

• How strong is the paper clip?

• Does the number of paper clips change the force of the magnet?

• Can a magnet attract an object that it is not touching?

• Does the direction of the magnet matter?

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What will increasing or decreasing the amount of paper do?

• Adding more paper will change nothing.

• It will weaken the magnet itself.

• More paper will weaken the amount of force exerted on the paper clip.

• Decreasing paper will make the force of the magnet stronger.

Tags

NGSS.MS-PS2-5

Which forces are acting on the dominoes that are standing up?

• gravity

• magnetic force

• balanced force

• friction

Tags

NGSS.MS-PS2-4

This tractor has an electromagnet being used to lift heavy scrap metal. Why would the scrap metal fall?

• The magnet was turned off.

• The magnet was turned on.

• The metal was too heavy.

• The magnet is turned backwards.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-5

These two men are trying to move this box across the room. Will their strategy work? Why or why not?

• It will work because they are both pushing.

• It will work because two men pushing will make the box light.

• It will not work because they are pushing against each other.

• It will not work because one is pushing and one is pulling.

Tags

NGSS.MS-PS2-1

Will this man be able to push this car very far alone, or will he need help?

• He will be able to push it very far. It is a small car.

• He is pushing the car.

• He will not be able to push the car very far alone. The car is too heavy. The forces are unbalanced.

• He will not be able to push it very far, because the car is pushing back.

Tags

NGSS.MS-PS2-2

What are these two men creating right now?

• They are creating a balanced force that will result in the couch moving.

• They are creating a pull which will result in the couch moving.

• They are creating an unbalanced force that will result in the couch moving.

• They are creating a magnetic force that will result in the couch moving.

Tags

NGSS.3-PS2-1

Which child will push their car the farthest?

• A

• B

• C

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2