Matter and Energy Test 7

What is the rate of electric charge flow?

• voltage

• power

• resistance

• current

Aiden is playing with a bar magnet and notices something interesting. What is the region of concentrated magnetism at the end of the magnet?

• pole

• magnetic field

• domain

• line of flux

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Avery is designing a new electrical circuit and is considering using wires of different diameters. What happens to the resistance of the wire as the diameter of the conductor increases?

• Resistance ceases.

• Resistance increases.

• Resistance does not change.

• Resistance decreases.

William is on an expedition to the magnetic poles. He observes that the inclination at the magnetic poles is 90°. What is the orientation of the lines of flux?

• vertical

• diagonal

• horizontal

• nonexistent

What process imparts electric charge at a distance without direct contact between objects?

• insulation

• induction

• conduction

• reduction

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

David is setting up a circuit for his science project. He needs to measure the flow of electric charge. What is the SI unit of current?

• volt

• kilowatt-hour

• ohm

• ampere

Sophia is conducting an experiment in her physics class to study magnetic fields. What can she use to indicate the direction and strength of a magnetic field?

• isoclinic lines

• domains

• poles

• lines of flux

Luna is building an electromagnet for her science project. She initially winds 50 loops of wire around a nail. What will happen to the strength of the electromagnet if she adds another 50 loops?

• halves

• doubles

• triples

• quadruples

Tags

NGSS.HS-PS2-5

Ava wants to magnetize a needle for her science project. She holds a magnet near the needle. What method of magnetism is she using?

• magnetizing by electricity

• magnetizing by contact

• magnetizing by induction

• magnetizing by deflection

Ethan and Ava each have a balloon that is charged with static electricity. How do the balloons interact when they are brought close to each other?

• no interaction

• stop moving

• attract

• repel

Tags

NGSS.HS-PS2-4