Physical Science S1-2024 Exam Review

Front

What does the Law of Conservation of Energy state?

Back

Energy cannot be created or destroyed.

Front

How do you calculate voltage using resistance and current?

Back

Voltage (V) = Current (I) × Resistance (R). For example, if a car radio has a resistance of 15 ohms and draws a current of 0.87 amperes, the voltage is 13 volts.

Front

What type of waves can travel through space?

Back

Electromagnetic waves.

Front

Which color of light has the most energy?

Back

Yellow light has more energy than red, green, and blue light.

Front

What is the energy transformation in a solar-powered Ferris wheel?

Back

Solar energy is transformed into electrical energy, which is then transformed into mechanical energy.

Front

Define electromagnetic waves.

Back

Electromagnetic waves are waves that can travel through the vacuum of space and do not require a medium.

Front

What is the relationship between frequency and energy in waves?

Back

Higher frequency waves have more energy than lower frequency waves.

Front

What is resistance in an electrical circuit?

Back

Resistance is a measure of the opposition to the flow of electric current, measured in ohms.

Front

What is the formula for calculating energy in joules?

Back

Energy (E) = Power (P) × Time (t). Power is measured in watts.

Front

What is the difference between potential energy and kinetic energy?

Back

Potential energy is stored energy based on position, while kinetic energy is the energy of motion.