Electricity

Electricity

We use electrical energy everyday. Electrical energy is used to produce light, heat, sound and to move objects.

Power plant

Power plants use kinetic energy produced from winds, waves, and hydroelectric to move turbines and generate electricity.

Solar Cell

Solar cells convert light energy from the Sin into electrical energy. Solar cells are also used in satellites and calculators.

Dry Cell

Dry cells store chemical energy. The chemical energy is converted into electrical energy to move tools such as toy cars.

Dynamo

When wheels rotate, a small wheel of the dynamo also rotates. The dynamo converts kinetic energy into electrical energy that can light up a bicycle light.

Accumulator

Accumulators convert chemical energy into electrical energy. It is used to start up vehicles such as cars.

Generator

Generators convert chemical energy from fossil fuels into electrical energy.

Multiple Choice

Which of the following uses kinetic energy produced from winds, waves, and hydroelectric to move turbines and generate electricity?

• Generator

• Accumulator

• Power plant

• Solar cell

Multiple Choice

Which of the following converts light energy from the Sin into electrical energy? Solar cells are also used in satellites and calculators.

• Generator

• Accumulator

• Power plant

• Solar cell

Multiple Choice

Which of the following stores chemical energy? The chemical energy is converted into electrical energy to move tools such as toy cars.

• Generator

• Accumulator

• Dynamo

• Dry cell

Multiple Choice

Which of the following converts kinetic energy into electrical energy that can light up a bicycle light?

• Power plant

• Accumulator

• Dynamo

• Dry cell

Multiple Choice

Which of the following converts chemical energy into electrical energy? It is used to start up vehicles such as cars.

• Power plant

• Accumulator

• Dynamo

• Dry cell

Multiple Choice

Which of the following converts chemical energy from fossil fuels into electrical energy?

• Power plant

• Accumulator

• Dynamo

• Generator

Series circuit

In a series circuit, each bulb is arranged in one chain. Series circuit has a single path for the electric current to flow.

Parallel circuit

In a parallel circuit, each bulb is arranged in several branches that are parallel to each other. The electric current in parallel circuit can flow in more than one path.

Multiple Select

Which of these statement describe a series circuit?

• each bulb is arranged in one chain

• each bulb is arranged in several branches that are parallel to each other.

• has a single path for the electric current to flow

• has more than one path for the electric current to flow

Multiple Select

Which of these statement describe a parallel circuit?

• each bulb is arranged in one chain

• each bulb is arranged in several branches that are parallel to each other.

• has a single path for the electric current to flow

• has more than one path for the electric current to flow

Component

Dry cell

Component

Switch

Component

bulb

Multiple Choice

Observe the symbol to identify the component. Choose your answer.

• Dry Cell

• Switch

• Bulb

Multiple Choice

Observe the symbol to identify the component. Choose your answer.

• Dry Cell

• Switch

• Bulb

Multiple Choice

Observe the symbol to identify the component. Choose your answer.

• Dry Cell

• Switch

• Bulb

Video

Fill in the Blank

The series circuit has ___ path for the electric current to flow. All the bulbs share the electric current. This cause bulbs to be dimmer than the bulbs arranged in the parallel circuit.

Fill in the Blank

The parallel circuit has more than one path for the electric current to flow. The total electrical energy that flows through each path is the ____. This cause bulbs to be brighter than the bulbs arranged in the series circuit.