Unit 5.1 Quiz

Which is the amount of matter in an object?

• Weight.

• Mass.

• Force.

• Gravity.

What is a field?

• The area around something where force is experienced.

• The grassy place where soccer is played.

• A push or a pull

• A particular branch of study of a subject.

A north pole will atract to a

• South pole.

• North pole.

A south pole will repel a

• South pole.

• North pole.

• East pole.

• West pole.

What is force?

• A push exerted on an object
• A push or pull exerted on an object
• A pull exerted on an object
• Nothing

Surrounding every magnet is a __________ __________.

• magnetic field

• electrical field

• gravitational field

• force

A positively charged balloon is hanging from a string. A negatively charged rod is then held a short distance away. How will the ball be affected?

• It will not be affected because only the rod has an electrical field.

• The electric fields on the ball and the rod will interact, causing an attractive force.

• The electric fields on the ball and the rod will interact, causing a repulsive force.

• The magnetic fields on the ball and the rod will interact, causing a attractive force.

Which of these best describes a magnetic field?

• a measure of the length of a magnet

• the force that pushes two magnets away from each other

• an invisible area that surrounds the north pole of a magnet

• an area around a magnet in which magnetic forces can be measured

A student is brushing her hair. As the hairbrush is brought near her head, the hair seems to reach toward the hairbrush. Which of the following is the best explanation?

• Two electric fields are interacting.

• Two magnetic fields are interacting.

• Two gravitational fields are interacting.

• Two electromagnetic fields are interacting

force that brings two materials together

• attraction

• repulsion