Quiz 4 Science

What is force?

• A push or pull

• when you exert a force

• Amount of work being done

• Ability to do work and cause change

What is energy?

• Ability to do work

• Rate at which work is being done

• A push or pull

• Position changes relative to another object

Which two facts affect work?

• Force

• Distance

• Work

• Time

How much work is being done if 200 N is being used to lift a shark 5.5 m?

The equation for power is

• Force x Distance

• Work/Time

• Time x Work

• Force/Distance

True or False: Work requires motion.

• True

• False

The units of force include

• Joules (J)

• Watts (W)

• Newtons (N)

• Meters (M/m)

The unit for distance includes

• Watt (W)

• Joules (J)

• Meter (m)

• Newton (N)

What factors affect kinetic energy?

• mass only

• speed only

• mass and time

• mass and speed

• distance and speed

Which of the following are forms of energy?

• Air

• Light

• Sound

• Electricity