Kinetic and Potential Energy Review.

Front

What kind of energy is in a moving skateboard?

Back

Kinetic energy is the energy of motion.

Front

A 0.40 kilogram bird is flying at a constant speed of 8.0 m/s. What is the bird's kinetic energy?

Back

The kinetic energy (KE) is calculated using the formula KE = 0.5 * m * v^2. For the bird, KE = 0.5 * 0.40 kg * (8.0 m/s)^2 = 12.8 J.

Front

Which point has the most potential energy?

Back

Point a has the most potential energy.

Front

Energy due to motion is ____________ energy.

Back

Kinetic energy.

Front

A 2600 kilogram car is moving at a speed of 25 m/s. How much kinetic energy does the car have?

Back

The kinetic energy (KE) is calculated using the formula KE = 0.5 * m * v^2. For the car, KE = 0.5 * 2600 kg * (25 m/s)^2 = 437,500 J.

Front

What is potential energy?

Back

Potential energy is the stored energy in an object due to its position or state.

Front

What is the formula for kinetic energy?

Back

The formula for kinetic energy is KE = 0.5 * m * v^2, where m is mass and v is velocity.

Front

What factors affect potential energy?

Back

Potential energy is affected by the object's mass and its height above a reference point.

Front

What is the relationship between kinetic and potential energy in a roller coaster?

Back

As a roller coaster ascends, potential energy increases and kinetic energy decreases; as it descends, potential energy decreases and kinetic energy increases.

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the potential energy an object has due to its height above the ground, calculated as PE = m * g * h.