Unit 1: Practice Quiz 3

A child is sitting on a swing set and the ropes that hold them up have tension in them. What type of force is the tension?

• Contact force

• Gravitational force

• Magnetic force

• Electrostatic force

Planets orbit the Sun due to gravity, which holds them in place. What type of force is this?

• Contact Force

• Field Force

• Frictional force

• Tension force

The key difference between contact forces and field forces is:

• Contact forces require physical contact, while field forces act at a distance.

• Contact forces act at a distance, while field forces require physical contact.

• Both contact and field forces require physical contact.

• Both contact and field forces act at a distance.

Mass vs. Weight: Which of the following statements is true?

• A) Mass is how much gravity works on an object due to that object's mass.

• B) Weight is how much stuff something has.

• C) Mass is how much stuff something has.

• D) Weight and mass are the same thing.

Mass vs. Weight: Fill in the blank. Weight is how much ______ works on an object due to that object's mass.

• pressure

• friction

• energy

• gravity

Mass and weight can be measured separately.

• True

• False

What are the two main factors that control the gravity keeping planets in orbit around the Sun?

• The color of the planets and their speed

• How much mass the planets have and how far away they are from the sun

• The temperature of the planets and their size

• The number of moons each planet has

Fill in the blank: The farther away a planet is from the sun, the ______ gravity it will feel.

• less

• more

• same

• stronger

Planets that are farther from the Sun experience less pull from the Sun to keep them in place.

• True

• False

The orbits of the far planets are more oval-shaped than Earth's orbit because:

• they are more affected by the gravitational pull of other objects

• they are closer to the Sun

• they have thicker atmospheres

• they rotate faster than Earth