CBA 5 Review

Front

What is energy transformation?

Back

Energy transformation is the process of changing energy from one form to another, such as from mechanical energy to electrical energy.

Front

What is mechanical energy?

Back

Mechanical energy is the sum of potential energy and kinetic energy in an object that is used to do work.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion, calculated as KE = 1/2 mv^2, where m is mass and v is velocity.

Front

What is gravitational potential energy?

Back

Gravitational potential energy is the energy an object possesses because of its position in a gravitational field, calculated as PE = mgh, where m is mass, g is acceleration due to gravity, and h is height.

Front

How do you calculate mass using force and acceleration?

Back

Mass can be calculated using Newton's second law: F = ma, where F is force and a is acceleration. Rearranging gives m = F/a.

Front

What happens to kinetic energy at the highest point of a pendulum swing?

Back

At the highest point of a pendulum swing, kinetic energy is at its lowest and potential energy is at its highest.

Front

What is the relationship between kinetic energy and potential energy in a swinging pendulum?

Back

In a swinging pendulum, kinetic energy and potential energy convert into each other; as one increases, the other decreases.

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 does it mean for an object to be in constant speed?

Back

An object in constant speed is moving at the same rate over time, meaning its velocity does not change.

Front

What is the significance of the point of maximum kinetic energy in a pendulum?

Back

The point of maximum kinetic energy in a pendulum is where the pendulum is at its lowest point, moving fastest.