IQWST PS2 Lessons 4-9 Assessment Review

Front

What is the total energy of a moving car composed of?

Back

The total energy of a moving car is the sum of its potential energy (PE) and kinetic energy (KE).

Front

What equipment is necessary to design a circuit that transforms chemical energy to electrical energy to sound energy?

Back

A battery, wire, and buzzer are necessary to design such a circuit.

Front

What principle states that energy cannot be created or destroyed?

Back

The principle of conservation of energy states that energy is always conserved.

Front

What happens to the potential energy of a firework rocket as it moves skyward?

Back

The potential energy of the firework is transformed into kinetic energy as it moves skyward.

Front

What form of energy conversion occurs in a radio?

Back

In a radio, electrical energy is converted to sound energy.

Front

Define kinetic energy.

Back

Kinetic energy is the energy an object possesses due to its motion.

Front

Define potential energy.

Back

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

Front

What is an example of energy transformation in a battery-powered device?

Back

In a battery-powered device, chemical energy is transformed into electrical energy.

Front

What is the relationship between potential energy and height?

Back

Potential energy increases with height; the higher an object is, the more potential energy it has.

Front

What is an example of energy conservation in a closed system?

Back

In a closed system, the total energy remains constant, such as in a pendulum where energy shifts between kinetic and potential.