Non-Contact Forces

What is a force?

• a push

• a pull

• all of the above

Tags

NGSS.MS-PS2-1

What does the repel mean?

• a push away

• a pull toward

• to attract

How does gravity differ from magnetic and electric forces?

• Gravity works with electrical charges.

• Gravitational forces only work on metals.

• Gravity can not be blocked.

Tags

NGSS.MS-PS2-4

When using magnetic forces, opposite poles attract.

• True

• False

Tags

NGSS.3-PS2-3

Predict what will happen.

• attract

• 2 positively charged objects come in contact

  ++=?

• repel

• a north pole of a magnet and a south pole of a magnet comes in contact

  N+S=?

• attract

• 2 negatively charged objects come in contact

  --=?

• repel

• a south pole of a magnet and a south pole of a magnet comes in contact

  S+S=?

• repel

• A negative charged object and a positive charged object comes in contact

  -+=?

Tags

NGSS.MS-PS2-3

Forces have

• Magnitude

  (strength)

• Direction

• all of the above

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the unit of a force?

• a kilometer

• a newton

• a milligram

• a pound

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS2-4

What metal is NOT magnetic?

• Iron

• Aluminum

• Cobalt

Tags

NGSS.MS-PS1-2

NGSS.MS-PS2-3

Magnets need to touch something to apply force.

• True

• False

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What does attract mean?

• to push away

• to pull together

• neither

Tags

NGSS.MS-PS2-4