Balancing Forces

A ______________________ is when multiple forces of equal strength acting on an object.

• explain

• balanced force

• analyze

• magnetic force

Tags

NGSS.3-PS2-1

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-PS2-5

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.

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

• gravity

• magnetic force

• balanced force

• friction

Tags

NGSS.MS-PS2-4

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

NGSS.MS-PS2-2

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-PS2-1

NGSS.MS-PS2-2

What will happen to the girl in the pink shirt if the boy in the green shirt pulls harder than her?

• The boy will fall because he pulls too hard.

• The girl will go backwards because of his push.

• The girl will go forward because his force is stronger than hers.

• The girl will fall because she doesn't know how to skate.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

______________ is a push or pull.

• evidence

• diagram

• force

• gravity

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

To cause a force to act on an object is to

• diagram

• investigate

• magnet

• exert

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2