Forces and Motion - 2024

Front

What is static friction?

Back

Static friction is the force that keeps an object at rest and prevents it from moving when a force is applied. It acts in the opposite direction of the applied force.

Front

What is rolling friction?

Back

Rolling friction is the force that opposes the motion of a rolling object. It is generally less than static or sliding friction, allowing wheels to roll smoothly.

Front

What is the relationship between mass and acceleration when the same force is applied?

Back

When the same force is applied, a lighter mass will have greater acceleration than a heavier mass, according to Newton's second law of motion (F=ma).

Front

What are unbalanced forces?

Back

Unbalanced forces are forces that cause an object to change its state of motion, either by speeding it up, slowing it down, or changing its direction.

Front

What two factors affect an object's kinetic energy?

Back

An object's kinetic energy is affected by its mass and speed. The formula for kinetic energy is KE = 1/2 mv².

Front

What is the formula for calculating force?

Back

The formula for calculating force is F = ma, where F is force, m is mass, and a is acceleration.

Front

What is the difference between balanced and unbalanced forces?

Back

Balanced forces do not change an object's motion, while unbalanced forces result in a change in motion.

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion, which depends on its mass and speed.

Front

What is the effect of friction on motion?

Back

Friction opposes the motion of objects, slowing them down or preventing them from moving.

Front

What is the role of gravity in motion?

Back

Gravity is a force that attracts objects toward each other, affecting their motion and causing them to accelerate towards the Earth.