PS semester final

Front

What is kinetic energy?

Back

Kinetic energy is the energy an object possesses due to its motion. It is highest when the object is moving fastest.

Front

At which point in a pendulum's swing is kinetic energy highest?

Back

At the lowest point of the swing (Point 3).

Front

What is the last energy transformation in a nuclear power plant?

Back

The turbines generate electricity.

Front

Define mechanical advantage.

Back

Mechanical advantage is a quantity that expresses how much a machine multiplies force or distance.

Front

What energy transformation occurs when a car burns gasoline?

Back

Chemical energy is transformed into thermal energy, which is then transformed into mechanical energy.

Front

Calculate the mechanical advantage of a ramp that is 8 m long and 2 m high.

Back

The mechanical advantage is 4.

Front

What is potential energy?

Back

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

Front

How does energy transformation occur in a hydroelectric power plant?

Back

Potential energy of water is transformed into kinetic energy as it flows, which is then converted into mechanical energy to turn turbines, generating electricity.

Front

What is the formula for calculating mechanical advantage?

Back

Mechanical Advantage = Output Force / Input Force.

Front

What is the principle of conservation of energy?

Back

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