1st 9 weeks Exam Study Guide

If two particles placed near each other accelerate towards each other, what can we infer about their charge?

• They are oppositely charged particles.

• They are neutrally charged particles.

• They have the same charge.

• They are not charged.

Tags

NGSS.HS-PS2-4

Explain the charges of the magnets pictured below.

• Magnet A and B have like poles facing one another causing them to repel.

• Magnet A and B have opposite poles facing one another causing them to attract.

• Magnet A is neutral and Magnet B is charged.

• Magnet A and B are both uncharged.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What are the three ways of creating static charge on an object? Which method or methods will produce the same charge on two objects?

• Conduction, induction and friction are the three ways to create static charge on an object. Conduction is the only method that will produce the same charge on the objects.

• Conduction, radiation, and friction are the three ways to create static charge on an object. Radiation is the only method that will produce the same charge on the objects.

• Induction, radiation, and friction are the three ways to create static charge on an object. Induction is the only method that will produce the same charge on the objects.

• Conduction, induction, and radiation are the three ways to create static charge on an object. Friction is the only method that will produce the same charge on the objects.

If you place two magnets near each other, with opposite poles facing each other, will the attractive force between them still exist?

• Yes, magnetic force is non-contact. The magnets will still pull towards one another even if they are not touching because of the magnetic field.

• No, the magnets need to be touching to attract each other.

• Only if they are in a vacuum.

• Only if they are submerged in water.

Tags

NGSS.MS-PS2-5

How could a student increase the strength of an electromagnet if they want to pick up more paper clips?

• By adding another battery to the electromagnet.

• By using a smaller core.

• By decreasing the number of coils.

• By using a plastic core.

A car driving down the road is an example of which type of force?

• Unbalanced

• Balanced

• Neutral

• Static

Tags

NGSS.MS-PS2-2

A football being thrown through the air is an example of which type of force?

• Unbalanced

• Balanced

• Static

• Neutral

125N pushing to the right and 50N pushing to the left is an example of which type of force?

• Unbalanced

• Balanced

• Static

• Neutral

Tags

NGSS.MS-PS2-2

A boat floating on top of the water is an example of which type of force?

• Balanced

• Unbalanced

• Static

• Neutral

A person falling down the hill is an example of which type of force?

• Unbalanced

• Balanced

• Static

• Neutral

Tags

NGSS.MS-PS2-4