Forces and Motion

What is a force?

• A force is a type of energy.

• A force is a form of matter.

• A force is a measurement of time.

• A force is a push or pull.

Name the three types of forces.

• magnetic force, electric force, and mechanical force

• gravitational force, electromagnetic force, and nuclear force

• thermal force, chemical force, and pressure force

• centripetal force, frictional force, and tension force

What is the SI unit of force?

• Kilogram

• Newton

• Meter

• Second

What is the difference between balanced and unbalanced forces?

• Balanced forces are equal in magnitude and direction, while unbalanced forces are not equal in magnitude and direction.

• Balanced forces are equal in magnitude and opposite in direction, while unbalanced forces are equal in magnitude and direction.

• Balanced forces are equal in magnitude and opposite in direction, while unbalanced forces are not equal in magnitude and/or opposite in direction.

• Balanced forces are not equal in magnitude and opposite in direction, while unbalanced forces are equal in magnitude and opposite in direction.

What is inertia?

• Resistance to changes in motion or rest.

• The ability to change direction easily

• The force that causes objects to fall towards the Earth

• The tendency to move in a straight line

What is the relationship between force, mass, and acceleration?

• force = mass + acceleration

• force = mass - acceleration

• force = mass * acceleration

• force = mass / acceleration

What is friction?

• Force that has no effect on motion

• Force that causes motion

• Force that supports motion

• Force that opposes motion

What are the different types of friction?

• dynamic friction, static friction, rolling friction

• thermal friction, electrical friction, gravitational friction

• kinetic friction, magnetic friction, air friction

• static friction, sliding friction, rolling friction, and fluid friction

What is the role of gravity in motion?

• Gravity affects the trajectory and acceleration of objects in motion.

• Gravity causes objects to stop moving.

• Gravity only affects the speed of objects in motion.

• Gravity has no effect on motion.

What is Newton's third law of motion?

• Every action has an equal and opposite reaction.

• Newton's third law of motion states that objects at rest tend to stay at rest.

• For every action, there is an equal and opposite reaction.

• For every action, there is no reaction.