Physical Science Quiz: Forces

The metric unit of force preferred by scientists is the:

• kilogram

• newton

• mima

• pound

Weight is a force that depends on mass and:

• friction

• gravity

• magnetism

• energy conservation

Which is the best description for the force vector drawn above?

• +3 cm

• +3 N

• -3 cm

• -3 N

Which of the following forces is a contact force?

• Gravity

• Friction

• Magnetism

• Electricity

Which of the following is the largest unit of force?

• Kilogram

• Ounce

• Pound

• Newton

Two dogs are tugging on opposite ends of a rope toy as shown in the picture. If each dog pulls with 50 N of force, what is the tension in the rope toy?

• 0 N

• 50 N

• 100 N

• 200 N

If an elephant has a mass of 2,000 kg, what is her weight on Earth?

• 0.0049 N

• 204 N

• 19,600 N

• 43,100 N

Which of the following diagrams shows the force vector -2 N?

• A

• B

• C

• D

The diagram shows two stacks of books that have a mass of 3 kg and 6 kg. How do their weights compare?

• They have the same weight.

• The 6 kg stack has 1/2 the weight of the 3 kg stack.

• The 6 kg stack has 1/3 the weight than the 3 kg stack.

• The 6 kg stack has twice the weight of the 3 kg stack.

Of the following measurements, the one that would be incomplete without giving a direction is:

• time.

• temperature.

• length.

• force.