Energy, Forces, and Motion Review

What is Kinetic Energy?

• Kinetic energy is the energy of a moving object.

• Kinetic energy is the energy stored in an object at rest.

• Kinetic energy is the energy associated with the temperature of an object.

• Kinetic energy is the energy released during a chemical reaction.

What is Friction?

• Friction is the force that opposes the motion of an object.

• Friction is the force that accelerates an object in motion.

• Friction is the force that increases the speed of an object.

• Friction is the force that allows objects to float in the air.

What is the Law of Conservation of Energy?

• Energy can be created and destroyed.

• Energy can only be created.

• Energy cannot be created or destroyed, only transformed from one form to another.

• Energy is a finite resource that can be depleted.

What is the difference between speed and velocity?

• Speed is the distance traveled per unit of time, while velocity is speed with a direction.

• Speed is always greater than velocity.

• Velocity is the total distance traveled regardless of direction.

• Speed and velocity are the same thing.

What is Gravity?

• Gravity is the force that repels two bodies away from each other.

• Gravity is the force that attracts two bodies towards each other, commonly experienced as the force that pulls objects towards the Earth.

• Gravity is the force that keeps objects floating in space.

• Gravity is the force that causes objects to move in a circular path.

What is Potential Energy?

• Potential energy is stored energy.

• Potential energy is the energy of motion.

• Potential energy is the energy released during a chemical reaction.

• Potential energy is the energy associated with temperature.

What does Inertia refer to?

• The force that causes an object to accelerate.

• The tendency of an object to remain at rest or in motion unless a force acts on it.

• The mass of an object multiplied by its velocity.

• The energy required to change the state of an object.

What is the formula for calculating Kinetic Energy?

• Kinetic Energy = mass * velocity

• Kinetic Energy = 1/2 * mass * velocity^2

• Kinetic Energy = mass * velocity^2 / 2

• Kinetic Energy = 2 * mass * velocity

What is Work in physics?

• Work is done when a force causes an object to move; calculated as Work = force * distance.

• Work is the energy transferred to an object by applying a force over a distance.

• Work is the measure of how much energy is used in a process.

• Work is the total amount of force applied to an object regardless of movement.

What is the formula for calculating Potential Energy?

• Potential Energy = mass * gravity * height.

• Potential Energy = mass * velocity * height.

• Potential Energy = mass * gravity * distance.

• Potential Energy = mass * height * time.