Force in Action

What is force?

• Force is a form of matter.

• Force is a unit of measurement.

• Force is a type of energy.

• Force is a push or pull upon an object.

What are the SI units of force?

• Newton (N)

• Kilogram (kg)

• Meter (m)

• Second (s)

What is the difference between balanced and unbalanced forces?

• Balanced forces are always present in nature, while unbalanced forces are artificial.

• Balanced forces have unequal magnitudes, while unbalanced forces have equal magnitudes.

• Balanced forces always result in motion, while unbalanced forces do not.

• Balanced forces cancel each other out, while unbalanced forces cause acceleration.

Explain the concept of frictional force.

• Frictional force is the force that is not affected by the roughness of surfaces.

• Frictional force is the force that opposes the motion of an object when it is in contact with another object or surface. It is caused by the microscopic roughness of surfaces and results in heat generation.

• Frictional force is the force that accelerates the motion of an object.

• Frictional force is the force that attracts objects together.

How does force affect the motion of an object?

• Force causes the object to remain stationary

• Force makes the object move at a constant speed

• Force affects the motion of an object by causing acceleration.

• Force has no effect on the motion of an object

Discuss the types of forces in nature.

• Magnetic force, frictional force, kinetic force

• Gravitational force, electromagnetic force, weak nuclear force, and strong nuclear force.

• Centrifugal force, centripetal force, tension force

• Heat force, light force, sound force

How can force be represented graphically?

• Using vectors with arrows to show magnitude and direction.

• Representing force with pie charts

• Drawing force as a straight line without arrows

• Using bar graphs to show force values

A book pushes down on a table with a force of 5N, the table..

• Pushes back with a force of 5N

• Pushes back with a force less than 5N

• Pushes back with a force greater than 5N

• Does nothing. A table has no force.

When a hammer exerts a force on the nail, the nail _________________________________________.

• exerts a smaller amount of force back onto the hammer

• exerts a larger amount of force back onto the hammer

• exerts the same amount of force back onto the hammer

• cries and cries and cries

Forces come in ___________ ___________ force pairs.

• action, reaction

• acting lessons

• action, cut

• chemical reaction