[YEAR 7 SCIENCE]: AOL #4 - Forces

What is a force?

• A force is a push or pull.

• A force is a measurement of time.

• A force is a type of energy.

• A force is a form of matter.

Name the four fundamental types of forces.

• kinetic force, potential force, mechanical force, and thermal force

• gravitational force, electromagnetic force, strong nuclear force, and weak nuclear force

• magnetic force, electric force, thermal force, and chemical force

• centripetal force, centrifugal force, frictional force, and tension force

Which force opposes the motion of objects in contact?

• inertia

• gravity

• friction

• magnetism

What is the force that pulls objects towards the center of the Earth?

• magnetism

• friction

• gravity

• electricity

What is the force that holds objects together due to their mass?

• magnetism

• friction

• tension

• gravity

What is the SI unit of force?

• Second

• Meter

• Kilogram

• Newton

What is the formula to calculate force?

• force = mass / acceleration

• force = mass + acceleration

• force = mass - acceleration

• force = mass * acceleration

What is the force that acts on an object when it is in a fluid?

• magnetic force

• frictional force

• electrostatic force

• buoyant force

What is the force that opposes the motion of objects through air or water?

• friction

• resistance

• thrust

• drag

What is the force that attracts objects made of iron, nickel, and cobalt?

• electromagnetic force

• gravitational force

• magnetic force

• centripetal force