What happens if you break a bar magnet in half?

You will have two complete magnets.

What is the effect of increasing the number of turns in a coil on the magnetic field strength?

The magnetic field strength increases

Which of the following statements best describes a series circuit? All components are connected in separate branches. All components are connected end-to-end in a single path. The current splits at each component. Each component has the same voltage across it.

All components are connected end-to-end in a single path.

What is a key difference between AC and DC current?

AC current changes direction periodically.

Which statement is true about the voltage in a parallel circuit?

Each branch receives the full source voltage.

What describes the flow of electrons in a DC circuit?

Electrons move in one direction only.

You are given a circuit with two bulbs in parallel. If one bulb burns out, what will happen to the other bulb and why?

The other bulb will stay lit because it has its own path to the power source.

Why does a laptop charger need to convert AC from the wall outlet to DC?

Laptops require DC to function, and the wall outlet provides AC.

A student observes that a string of holiday lights goes out when one bulb burns out. What type of circuit is this, and why does this happen?

Series circuit; because the current cannot flow if one bulb is missing.

Why do you sometimes get a shock after walking on a carpet and touching a metal doorknob?

You have built up static charge that discharges to the doorknob.

What is the main difference between static electricity and current electricity?

Static electricity involves stationary charges, while current electricity involves moving charges.

If a negatively charged rod is brought near small pieces of paper, what will happen and why?

The paper will be attracted due to induced charges.

Why can a plastic comb pick up small bits of paper after combing hair?

The comb gains static charge and attracts the paper.

Explain why lightning is considered a form of static electricity.

Lightning is a sudden discharge of built-up static charge between clouds and the ground.

Why does dust often stick to the screen of a television?

The screen builds up static charge, which attracts dust particles.

What does a simple machine do?

Allows the users to apply less force over a longer distance, reduce the amount of force needed to do work, change the direction of the applied force.

Which is an example of someone using a simple machine to do work?

a mother pushes a stroller up a ramp

ICP Review Flashcards

Student preview

50 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is a major difference between electric charges and magnetic poles?

Back

Electric charges can exist on their own.

2.

FLASHCARD QUESTION

Front

What is a magnetic field?

Back

A force field

3.

FLASHCARD QUESTION

Front

What is the source of a magnetic field?

Back

Moving electric charge

4.

FLASHCARD QUESTION

Front

Why are not all atoms tiny magnets?

Back

Because, the spins must be in the same direction.

5.

FLASHCARD QUESTION

Front

A north pole of the magnet is brought near a south pole.

Back

they will attract

6.

FLASHCARD QUESTION

Front

A magnetic domain is

Back

a cluster of aligned atoms

7.

FLASHCARD QUESTION

Front

In order to make an electromagnet, you need

Back

a battery, a coil of wire, and a nail

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