Physical Science Final Review

Front

Energy stored due to your position above the Earth is called _____________.

Back

Gravitational potential energy.

Front

How do the particles of a medium affect the speed of a sound wave?

Back

The closer the particles, the faster the sound wave travels.

Front

Which of the following causes some of the energy transferred to an object to be converted into thermal energy?

Back

Friction.

Front

When you toss a rock into a pond it will sink. This is because the density of the rock is ___________ the density of the water.

Back

Greater than.

Front

What is the mass number of Carbon?

Back

12.

Front

Define gravitational potential energy.

Back

The energy an object possesses due to its position in a gravitational field, typically relative to the Earth.

Front

What is the relationship between particle density and sound wave speed?

Back

Sound waves travel faster in denser media because particles are closer together.

Front

Explain how friction affects energy transfer.

Back

Friction converts some of the mechanical energy into thermal energy, reducing efficiency.

Front

What is density?

Back

Density is the mass of an object divided by its volume (Density = Mass/Volume).

Front

What is the formula for calculating gravitational potential energy?

Back

Gravitational Potential Energy (GPE) = mass (m) × gravitational acceleration (g) × height (h).