WorksheetsFINAL Purcaro ENERGY TRANSFER, HEAT, MATTER, THERMAL ENERGY
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
24. What is thermal equilibrium?
a)
When two objects are at rest at the same time
b)
Potential energy
c)
When objects reach boiling point
d)
When two objects reach a common temperature
2.
12. If two objects have different temperatures, heat will flow from the warmer object to the cooler object until ___________?
a)
They both have an equal temperature
b)
One object runs out of energy
c)
One object reaches a temperature of zero
3.
11. When a substance changes from solid to gas and does not go through the liquid phase it is called what?
a)
Evaporation
b)
Condensation
c)
Freezing
d)
Sublimation
4.
8. Why can liquids not be compressed easily?
a)
The particles are in a random arrangement
b)
The particles are closely packed
c)
The particles are free to move over each other
5.
1. Solid particles are
a)
Loosely bonded and flowing
b)
Tightly packed
c)
Free to fly around
d)
Very hot
6.
30. After testing, you may decide to modify your device. This is known as __________.
a)
Prototype
b)
Control
c)
Trial One
d)
Redesigning
7.
16. What is the measurement of average kinetic energy of the particles in a substance?
a)
Celsius
b)
Kelvin
c)
Weight
d)
Temperature
8.
14. What is thermal energy?
a)
A form of energy that shows brightness
b)
Potential energy
c)
A form of energy that is transferred between systems and objects
d)
A form of energy that you can hear
9.
21. When you pick up an ice cube, what happens?
a)
Thermal energy flows from the ice cube to your hand
b)
Thermal energy flows from your hand to the ice cube
c)
Energy flows back and forth between your hand and the ice cube
d)
The ice cube sublimates
10.
32. What type of heat transfer does a thermos prevent?
a)
Convection
b)
Radiation and conduction
c)
Convection and radiation
11.
33. Which type of heat transfer sends heat as waves through empty space?
a)
Convection
b)
Radiation
c)
Conduction
12.
29. Why do you have a control when you plan an investigation?
a)
So that you will know who won the race
b)
To minimize the effects of factors other than the one being tested
c)
It is tradition
d)
You don’t really need a control
13.
5. Which theory describes the arrangement and movement of particles in solids, liquids and gases?
a)
Theory or relativity
b)
Kinetic theory
c)
Atomic theory
14.
23. Heat moves from a cooler object to a warmer object
a)
True
b)
False
15.
38. When air cools down the molecules
a)
Speed up
b)
Slow down
c)
Stay the same
16.
9. If the liquid is heated, what type of change occurs?
a)
Increased energy
b)
Condensation
c)
Freezing
d)
Sublimation
17.
20. The faster the molecules are moving,
a)
The higher the temperature
b)
The lower the temperature will be
c)
Particle movement does not relate to temperature
18.
37. Water boiling is due to
a)
Convection
b)
Radiation
c)
Conduction
19.
31. An ice chest
a)
Minimizes thermal transfer
b)
Maximizes thermal transfer
c)
Uses mostly conductors
20.
15. A piece of metal feels colder than a piece of wood at the same temperature. Which explanation explains this phenomenon?
a)
Metals in general are good conductors while wood is an insulator
b)
Wood is a poor insulator but metals of have atoms that move more slowly than wood
c)
Metals are colder than wood
d)
The difference is in the hand, not the wood or metal
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