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WorksheetsHeat Exam Practice questions
Total questions: 15
Worksheet time: 8mins
A farmer needed to keep his baby chicks warm. He placed a light in their cage. Which sentence best explains the farmer's thinking of placing a light in the cage.
The farmer thought the light would transfer thermal energy to the chick's cage
The farmer thought that the chick's would be healthier if they were not in the dark
The farmer thought that the chick's would eat more to stay warm if they can see their food
The farmer thought the light would encourage the chick's to huddle together to keep themselves warm
What is the movement of energy from warmer to cooler objects?
temperature
heat
light
sound
What type of heat transfer is shown in the picture?
conduction
convection
radiation
What type of heat transfer is shown in the picture?
conduction
convection
radiation
What type of heat transfer is shown in the picture?
conduction
convection
radiation
Which bulb produces more light with less electricity?
Incandescent
LED
Which bulb wastes more energy as heat?
Incandescent
LED
Which bulb produces more light?
Incandescent
LED
How much light is produced by Incandescent light bulbs
98%
2%
91%
9%
Where does heat move
warmer objects to warmer objects
warmer objects to cooler objects
cooler objects to warmer objects
It does not move
_________ is an excellent thermal conductor because it conducts heat easily.
wood
plastic
aluminium
brick
Obaid did an experiment where he observed that a hot pan is best held by a dry oven mitt. This is because the oven mitt is a …
conductor
insulator
metal
thermometer
In the image below, what evidence can you gather to prove that energy is being transferred? The smoke shows that the grill is transferring ……… to cook the food.
heat energy
sound energy
electrical energy
nuclear energy
The figure below shows the percentages of heat and light energy produced from LED and incandescent light bulbs.
What is the percentage of light that is produced from each of them?
LED 91% and incandescent 2%
LED 98% and incandescent 2%
LED 98% and incandescent 9%
LED 91% and incandescent 2%
The figure below shows the percentages of heat and light energy produced from LED and incandescent light bulbs.
What is the percentage of heat that is produced from each of them?
LED 91% and incandescent 2%
LED 98% and incandescent 2%
LED 9% and incandescent 98%
LED 91% and incandescent 2%
