Energy in Collisions

A (a)   is any push or pull action that will cause an object to start moving or change directions.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-5

Which of the examples below is explains contact forces?

• A compass needle swinging to point North because of the Earth's magnetic force is an example of contact forces.

• Pushing a cart is an example of energy transfer.

• Chewing gum is an example of contact forces .

• Jumping rope is an example of contact forces.

Which two choices below are units of force? Pick TWO choices from below.

• Meter (M)

• Newton (N)

• Inches (IN)

• Pound (LB)

Is the statement TRUE and FALSE?

Forces occurring without objects touching is called noncontact forces.

• True

• False

Tags

NGSS.MS-PS2-5

A force can

• cause an object to start moving or change direction.

• can cause an object to stop moving.

• can cause an object to stay still.

• l.

Tags

NGSS.MS-PS2-2

What is gravity ?

• a contact force that acts over a distance and pulls objects towards each other.

• is the wind that makes things move.

• a non contact force that acts over a distance and pulls objects towards each other.

Tags

NGSS.5-PS2-1

What TWO FACTORS does the pull of gravity between two objects depend on ? Pick TWO.

• The amount of time it takes the objects to move.

• The amount of space an object has.

• The amount of matter in the objects.

• The distance between the objects.

Tags

NGSS.MS-PS2-4

TRUE OR FALSE: Gravity is stronger when objects are closer together.

• True

• False

Tags

NGSS.HS-PS2-4

TRUE OR FALSE: The moon is more massive than the Earth.

• True

• False

Tags

NGSS.MS-PS2-4

WHAT WORD BELONGS IN THE STATEMENT?: The pull of gravity between Earth and the Moon causes ________________.

• waves

• tides

• storms