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- 1. Multiple Choice
What is an insulator?
Something that keeps objects warm
Something that stores thermal energy
Something that slows the transfer of thermal energy
Something that allows the transfer of thermal energy
- 2. Multiple Choice
How does most insulation in the home work?
The insulating material has a vacuum that doesn't allow conduction or convection to occur
The insulating material has trapped air pockets that slows conduction and convection from occurring
All the insulating material is put at the top of the house because heat rises
All the insulating material is put in the walls because they have a large surface area
- 3. Multiple Choice
Installing insulation...
keeps your house warm in the winter and cool in the summer
only keeps your house warm in the winter
only keeps your house cool in the summer
keeps your house cool in the winter and warm in the summer
- 4. Multiple Choice
Double glazing works by...
Setting up a convection current in the gap between the windows that stops thermal energy transfer
A layer of foam between two window panes traps air and stops conduction and convection
Thick layers of glass ensure that conduction takes longer so it slows the rate of thermal energy transfer
A trapped layer of air between two window panes stops conduction and convection
- 5. Multiple Choice
___________________ are materials that ALLOW heat and electricity to move easily through them.
Conductors
Insulators
- 6. Multiple Choice
______________ are materials that RESIST the flow of heat or thermal energy.
Conductors
Insulators
- 7. Multiple Choice
According to the table, which material will increase its temperature easier?
Lead
Aluminum
Water
Copper
- 8. Multiple Choice
Which of the following is a conductor of thermal energy?
A coat
A rug
A metal spoon
- 9. Multiple Choice
Which of the following is an insulator for thermal energy?
A coat
A glass window
A metal pan
- 10. Multiple Choice
The total energy of all the particles in a substance is called
temperature
thermal energy
degrees
mass
- 11. Multiple ChoiceWhat happens to particles as they heat up?They slow downNothingThey don't moveThey speed up
- 12. Multiple Choice
A beaker has 100 g of water. The amount of energy needed to raise the temperature
of the water 5°C is approximately
100 J
209.5 J
2905 J
1000 J
- 13. Multiple Choice
Which of the following would require the least amount of heat to raise its
temperature by 20°C?
400 g of motor oil
400 g of sand
400 g of water
400 g of iron
- 14. Multiple Choice
You need to raise each beaker's temperature 10°C. Which beaker needs the most heat to cause this temperature change?
a beaker containing 400 mL of water at 20°C
a beaker containing 400 mL of motor oil at 20°C
a beaker containing 800 mL of motor oil at 30°C
a beaker containing 800 mL of water at 10°C
- 15. Multiple Choice
Mice generally stay warm under the snow in the winter because
the ground does not freeze under the snow
snow is a poor insulator
snow is a good insulator
the ground has a high specific heat capacity
- 16. Multiple Choice
Which insulation would best keep a house warm in winter?
50 mm of wood shavings
R-value = 4.84
25 mm of fibreglass
R-value = 4.25
25 mm of rigid urethane foam
R-value = 7.50
25 mm of air space with a reflective surface
R-value = 5.54
- 17. Multiple Choice
Keeping warm on a cold day is best done by
continuously moving
wearing a heavy coat
drinking hot liquids
wearing several layers of clothing
- 18. Multiple Choice
Which of the following is not a characteristic of Caribou Inuit clothing?
uses two layers
is worn with fur next to the body
has a nylon inner shell to make it windproof
has a large hood to trap air in front of the wearer’s face
- 19. Multiple Choice
The reason an ocean diver’s suit has a hood is
to keep the diver’s hair dry
to prevent heat loss from the head
so the diver does not get water in his or her ears
to make the suit more attractive
- 20. Fill in the Blank
On a hot, sunny day in July, your car overheats in a hot, dry area of southern Saskatchewan.
You can sit in the car and wait for help or walk 2 miles to a service station. Since
temperatures in the car are approaching 65°C, you decide to walk. Which items of clothing
would keep you the coolest? Pick one from each set.
a. a black shirt or a white shirt
b. light jeans or dark jeans
c. a black cowboy hat or a white cowboy hat
- 21. Multiple Choice
The unit of measure used to record the amount of work done is the
newton
metre
newton-metre
kilogram
- 22. Multiple Choice
A simple machine helps you by
reducing the effort you need
reducing the amount of work done
increasing the amount of work done
doing all the work for you
- 23. Multiple Choice
The efficiency of a machine can be increased by
making it go faster
increasing the fuel consumption
lubricating it to reduce friction
stopping it
- 24. Multiple Choice
A way that would not help society reduce the use of fossil fuels is
walk or bicycle more
drive more slowly
drive bigger cars
turn down the thermostats
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