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WorksheetsUnit 2 Energy Transfer
Total questions: 23
Worksheet time: 20mins
Name
Class
Date
1.
Which of these materials transfers heat energy quickest?
a)
metal
b)
glass
c)
plastic
d)
wood
2.
A class made a solar cooker out of a large can. What color should they paint the can in order to collect the MOST heat?
a)
black
b)
green
c)
pink
d)
white
3.
The flow of energy from an object at a higher temperature to an object at a lower temperature.
a)
heat
b)
temperature
c)
radiation
d)
conduction
4.
The process by which energy is transferred from a warmer object to a cooler object by means of physical contact
a)
Thermal Energy
b)
Convection
c)
Radiation
d)
Conduction
5.
Energy that travels across distances in the form of electromagnetic waves.
a)
Convection
b)
Radiation
c)
Conduction
d)
Induction
6.
Heat transfer always goes from-
a)
Cold to Hot
b)
Hot to Cold
c)
Heat doesn't transfer
d)
Freezing to Cold
7.
What happens to particles as they heat up?
a)
They slow down
b)
Nothing
c)
They don't move
d)
They speed up
8.
Energy exist in different forms. What type of energy is stored in food?
a)
chemical energy
b)
sound energy
c)
mechanical energy
d)
electromagnetic energy
9.
What kind of energy is represented in this picture?
a)
Thermal
b)
Potential
c)
Nuclear
d)
Mechanical
10.
What is an insulator?
a)
Something that does NOT absorb heat very well.
b)
Something that absorbs heat.
11.
What is a conductor?
a)
Something that does NOT absorb heat very well.
b)
Something that absorbs heat.
12.
Warm air is __________ dense than cold air and rises creating convection currents.
a)
more
b)
less
13.
The faster an object moves, the ________ kinetic energy it has.
a)
more
b)
less
c)
none of the above
d)
all of the above
14.
The liquid in a thermometer ______________ as the temperature increases.
a)
expands
b)
disappears
c)
freezes
d)
explodes
15.
_________________________ is a measure of the average kinetic energy of the particles in a material.
a)
thermal
b)
friction
c)
temperature
d)
expansion
16.
David is warming chocolate on the stove. How is the motion of the particles different after the temperature is increased?
a)
they move faster
b)
they move slower
c)
the move less freely
d)
they vibrate close together
17.
On a hot day the lake water warms and the temperature increases. How does the movement of the particles change?
a)
move slower and farther apart
b)
move slower and closer together
c)
move faster and farther apart
d)
move faster and closer together
18.
The Law of Conservation of Energy states:
a)
Energy can created or destroyed but not transformed
b)
Energy cannot be created or destroyed, it can only transformed
c)
Energy can't be created, destroyed or transformed
19.
The more particles an object has at a given temperature,
a)
the higher the temperature
b)
the more thermal energy it has
c)
the more degrees it has
d)
the more Kelvins it has
20.
Temperature is defined as the ______________ kinetic energy of molecules in a substance.
a)
average
b)
square root
c)
total
21.
The unit of measurement for temperature in our science class is ....
a)
degree Celsius
b)
degree Fahrenheit
c)
Kelvin
22.
Device/Object that measures temperature.
a)
Thermal energy
b)
Temperature
c)
Thermometer
d)
Heat
23.
A flow movement where warmer air gets cools off and cooler air warms up.
a)
Current
b)
Convection current
c)
Conduction current
d)
All of them
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