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Worksheets8K Energy Transfers
Total questions: 40
Worksheet time: 23mins
What is the name for energy stored in the movement of particles?
Internal Energy
Conduction
Current
Power
What does thermal energy depend on?
The material
The Watts
The temperature
The mass
How could I increase the internal energy of an object
Increase the temperature
Increase the colour
Increase the pH
Increase the mass
Temperature is the ___________ energy of movement of particles
total
most
average
radiation
What unit(s) can I use to measure temperature?
Joules (J)
Kilojoules (kJ)
Degrees Celsius (℃)
Kilodegrees Celsius(k℃)
Internal Energy and Temperature are both related to the movement of particle speed
True
False
How is Internal (thermal) energy transferred between objects?
Coldness
Air
Heat
Fire
Energy will travel faster between objects that are at very different temperatures compared to two objects that are close in temperature
True
False
For a particle to evaporate, it must be...
Near the surface of the liquid
Be a gas particle
Have high energy
Be only one element
What will happen to a liquid's temperature during evaporation?
It will stay the same
It will increase
It will decrease
It depends what kind of liquid it is
Evaporating liquid's temperature will decrease which is why humans...
Cry
Drink water
Have Saliva
Sweat
Identify the ways heat energy can be transferred
Radiation
Conduction
Convection
Evaporation
Identify how heat energy is being transferred:
When you look into a microwave the skin on your face feels warmer
Radiation
Conduction
Convection
Evaporation
Identify how heat energy is being transferred:
A hot air balloon will float in the air
Radiation
Conduction
Convection
Evaporation
Identify how heat energy is being transferred:
Water spilled on the floor will cool the room's temperature
Radiation
Conduction
Convection
Evaporation
Identify how heat energy is being transferred:
Being burned by touching a hot stove
Radiation
Conduction
Convection
Evaporation
Hot objects give out radiation energy and cold objects do not
True
False
What can happen when radiation hits an object?
It can get stuck to the object
It can be absorbed
It can be reflected
It can be turned
Which type(s) of heat transfer DO NOT require particles (a medium) to occur?
Radiation
Conduction
Convection
Evaporation
Thermal radiation can be measured with...
A thermometer
A thermal imager
A scale
A mirror
Which form(s) of heat transfer is done by vibrating particles
Radiation
Conduction
Convection
Evaporation
What is a thermal conductor?
A material that transfers heat energy well
A material that contains a lot of energy
A material that has high Power
A material that does not transfer heat energy well
What is a thermal insulator?
A material that transfers heat energy well
A material that contains a lot of energy
A material that has high Power
A material that does not transfer heat energy well
Why is conduction most common in solids?
Because the particles are the strongest
Because the particles are the closest together
Because metals are solids
Because liquids and gases do not have particles
Hot air will move energy by convection because..
The density of the hot air is higher
The density of the hot air is lower
The energy of the air is lower
The particles in the air become closer together
Currents transfer energy in a room by
Radiation
Conduction
Convection
Evaporation
Who is correct?
The white boy with the brown hair
The white girl with blond hair
The black boy with black hair
No one is correct
Identify the thermal conductors
Rocks
Steel
NTD coins
Plastic
If you are drinking milk, you want your glass to be a....
Thermal displacer
Thermal conductor
Thermal insulator
Thermal imager
You can use a thermal insulator to help...
Keep your house warm in the winter
Keep your house cold in the summer
Light up your room
Boil water
Wearing jackets keeps your body warm because air is...
Warm
A thermal insulator
A thermal conductor
Cold
All thermal insulators trap air
True
False
Which colour is the best ABSORBER of radiation?
Red
White
Pink
Black
Which colour is the best EMITTER (releaser) of radiation?
Red
White
Pink
Black
Appliances that have a high Power Rating will...
use more energy
be bigger
be better
be better insulators
If a device has a power rating of 100 W, that means...
It will transfer 100 Watts (W) per second (s)
It will transfer 100 Watts (W) per minute (m)
It will transfer 100 Joules (J) per second (s)
It will transfer 100 Joules (J) per minute (m)
The efficiency of a device is...
How much energy it uses
How much energy it uses compared to how much it wastes
How much energy it uses to make heat
How much energy it uses to make light
According to this Sankey Diagram, what could be possible values for how much energy is transferred by light?
2 J
4 J
20 J
35 J
According to this Sankey Diagram, what could be possible values for how much energy is transferred by heating?
2 J
4 J
20 J
35 J
The 'useful energy' produced by a device will always be light energy
True
False
