WorksheetsWeek 12 Reading
Total questions: 10
Worksheet time: 3hrs 30mins
In the passage, the sentence said, "The filament burns out too quickly." What does the word "filament" mean?
A piece of paper.
An ice-cream sundae.
Part of the lightbulb that makes the light.
The wires in the lightbulb.
Reread the sentence in the passage to determine the meaning of the word "electric current."
"When an electric current flows through the filament, the filament gets so hot that it glows and gives off light."
An electric current makes the lightbulb cold.
An electric current creates the light.
An electric current is what turns the lightbulb off.
An electric current is the flow of water.
Looking at the picture above, what do the "support wires" do for the "filament"?
The support wires do nothing for the filament.
The support wires creates the filament.
The support wires erase the filament.
The support wires hold the filament.
Reread the sentences to determine the meaning of the word "circuit."
"When you put a lightbulb in a circuit, electricity can be delivered to the lightbulb. When the circuit is complete, the electric current will flow."
A circuit is the path which electricity flows.
A circuit is a show where you can watch animals.
A circuit is the battery.
A circuit is the light from the lightbulb.
What does the word "electricity" mean based on the passage?
"When you put a lightbulb in a circuit, electricity can be delivered to the lightbulb. When the circuit is complete, the electric current will flow. The electric current has energy."
Electricity makes the lightbulb not work.
Electricity provides the energy for the lightbulb
Electricity is what lights candles.
Electricity is food for plants.
What is the job of the "lightbulb" based on the passage?
"The energy produces heat and light as the lightbulb does its job. Energy leaves the lightbulbs system as the light."
The lightbulb's job is to make sound.
The lightbulb's job is to feed animals.
The lightbulb's job is to give off light.
The lightbulb's job is to feed plants.
What produces "heat" in a lightbulb? Use the sentence from the passage.
"The energy produces heat and light as the lightbulb does its job."
The battery produces heat in a lightbulb.
The wires produces heat in a lightbulb.
The sun produces heat in a lightbulb.
Energy produces heat in a lightbulb.
Read the sentence below and tell where there is "energy."
"The electric current has energy."
The support wires.
The electric current.
The sun.
The ground.
How does the "light" come from the lightbulb system? Read the sentence below to help answer the question.
"Energy leaves the lightbulb system as light."
Batteries.
Candle.
Energy.
Sun.
What is NOT true about the first "LED lights?" Read the sentences below to help answer the question.
"The LED doesn't waste energy by producing heat. The first LEDs were dim and produced only red light. But they were extremely efficient."
The first LEDs were dim.
The first LEDs only had red light.
The first LEDs were extremely efficient.
The first LEDs only had purple light.
