50 Question Practice for 1st Semester Science Final Exam

Front

What is potential energy?

Back

Potential energy is the energy stored in an object due to its position or state. For example, a book on a high shelf has more potential energy than one on a low shelf.

Front

How are wavelength and frequency related?

Back

As frequency increases, wavelength decreases. This means that higher frequency waves have shorter wavelengths.

Front

At which point does a pendulum have the greatest kinetic energy?

Back

A pendulum has the greatest kinetic energy at its lowest point (point C), where it is moving the fastest.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). For example, warm air rising over land creates wind.

Front

What is radiation in terms of heat transfer?

Back

Radiation is the transfer of heat in the form of electromagnetic waves. For example, the warmth felt from a fire is due to radiation.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object in motion. The faster an object moves, the more kinetic energy it has.

Front

What is the difference between conduction and convection?

Back

Conduction is the transfer of heat through direct contact, while convection involves the movement of fluids to transfer heat.

Front

What is the law of conservation of energy?

Back

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is the formula for calculating kinetic energy?

Back

The formula for kinetic energy (KE) is KE = 1/2 mv², where m is mass and v is velocity.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two objects in contact do not exchange heat, meaning they are at the same temperature.