Science Benchmark Test Review

Magnet

• An object that responds to magnetic force

• The sum of all the forces acting on a mass

• The part of a motor that rotates when energy is transferred to it

• The force of gravity on a mass

Tags

NGSS.MS-PS2-3

If a student pushes with 500 N of force on a cart against a wall. The cart doesn't move. Why?

• The wall is sturdy

• The wall pushed back with a force of 500 N

• The wall pushed back with a force of 650 N

• The wall pushed back with a force of 350 N

Tags

NGSS.MS-PS2-1

Forces in the same direction

• add together

• subtract from each other

Tags

NGSS.MS-PS2-2

Net force of 0 N...

• ...moves to the left

• ...moves to the right

• ...does not move

• ...jumps in the air

Tags

NGSS.MS-PS2-2

When two magnets interact...

• like poles attract

• opposite poles repel

• nothing happens

• opposite poles attract

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

The greater the distance between magnets, the _________ the force between them.

• greater

• weaker

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which action would make an electromagnet stronger (able to pick up more paper clips)?

• Use thinner wire

• Add another D-cell into the circuit

• Wind fewer wraps around the core

• Wind the wraps loosely rather than tightly around the core

When two magnets have the same poles facing each other they will?

• attract
• repel
• attack one another
• spin

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Magnetism is a force of ____________________________ that occurs between two _____________ objects.

• attraction or repulsion, magnetic

• external or internal, magnetic

• external or repulsion, electronic

• attraction or internal, electronic

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

The magnetic ____________ around a bar magnet is shown above.

• legs

• flowers

• field

• direction

Tags

NGSS.MS-PS2-3