

Energy Unit Review
Presentation
•
Physics
•
6th - 9th Grade
•
Practice Problem
•
Medium
+5
Standards-aligned
Sarah Morriss
Used 31+ times
FREE Resource
1 Slide • 22 Questions
1
Energy Unit Review
Practice and Challenge Ourselves on our Energy Transfer and Transformation Skills
2
Multiple Choice
On a summer day, the asphalt is hot on your bare feet because the asphalt has ______ thermal energy from the sun.
absorbed
reflected
transmitted
scattered
3
Multiple Choice
One way a solar oven works is by transferring energy from the sun into...
electrical energy in the oven
thermal energy in the food or water inside
chemical energy in the food or water inside
motion energy in the oven
4
Multiple Choice
What is the law that states that energy cannot be created or destroyed, but can change from one type to another?
Law of Inertia
Law of Gravity
Law of Conservation of Energy
Law of Conservation of Matter
5
Multiple Choice
When an object has stored energy, but has not moved yet, it has:
Kinetic Energy
Electrical Energy
Potential Energy
Sound Energy
6
Multiple Choice
The following methods will melt an ice cube quickly, except:
break it into pieces and warm up the pieces
put it in a glass of room temperature water
put it in an insulating container
hold it in your hand and change hands when one hand gets cold
7
Multiple Choice
The amount of thermal energy that can be stored in an object depends on:
its mass
the energy supplied
the type of substance
all the factors described here
8
Multiple Choice
When an object is in motion, it has ___________ energy.
potential
kinetic
frictional
chemical
9
Multiple Choice
What energy transformation takes place when a lamp is plugged in and turned on?
kinetic to potential
electrical to sound
electrical to light
battery to motion
10
Multiple Choice
What is the transfer of heat by the circulation or movement of liquids and gases (air)?
Conduction
Convection
Radiation
Energy
11
Multiple Choice
Objects of different masses are suspended from a height. Which combination of features will have the greatest gravitational potential energy?
high mass and low height
high mass and high height
low mass and low height
low mass and high height
12
Multiple Choice
What do we call a change from one form of energy to another?
Energy form
Energy transformation
Kinetic energy
Potential energy
13
Multiple Choice
Which position has the greatest kinetic energy?
Position 1
Position 4
Position 3
Position 5
14
Multiple Choice
Use the given diagram to answer the question. At which point(s) is the gravitational potential energy the highest?
At points A and E
At points B and D
Only at point A
Only at point C
15
Multiple Choice
When you open the door to a refrigerator for a minute, what happens first?
Thermal energy in the air outside the refrigerator is transferred to the inside of the refrigerator.
Thermal energy in the refrigerator is transferred to the air outside the refrigerator.
The temperature of the air inside the refrigerator decreases.
The temperature of the air just outside the refrigerator increases.
16
Multiple Choice
Energy from the Sun reaches the Earth through a type of energy transfer known as:
Conduction
Convection
Radiation
Energy
17
Multiple Choice
Heating an object to a higher temperature increases that object's:
potential energy
thermal energy
chemical energy
kinetic energy
18
Multiple Choice
If you placed an object that was 90° Celsius in a room that is 25° Celsius, which of the following statements is correct?
The air in the room will transfer cooling energy to the object.
The temperature of both the room and the object will stay the same.
Thermal energy from the hot object will be transferred to the cold air in the room.
The air will lose thermal energy while the hot object gains thermal energy
19
Multiple Choice
What is a conductor?
a material or device that prevents energy to pass through
a material or device that involves a train
something we have not talked about in this unit
a material or device that allows energy to pass through easily
20
Multiple Choice
What is a insulator?
a material or device that is inside
a material which does not allow the energy to pass through
a material that allows energy to pass through easily
something we have not talked about in this unit
21
Multiple Choice
Cory noticed that the hood of his car was hot after driving it for awhile. What energy transformation was he noticing?
motion (kinetic) -----> thermal energy
chemical energy -----> thermal energy
thermal energy -----> motion (kinetic)
temperature energy -----> braking energy
22
Multiple Choice
A plastic spatula and metal tongs are both at the same temperature. The metal feels colder when you touch it. This is because:
metal conducts thermal energy from your hand better than plastic does
the metal tongs have more motion than the plastic spatula
metal contains more thermal energy than plastic
plastic loses more thermal energy than metal
23
Multiple Choice
Light energy from the Sun travels through space by:
conduction
convection
radiation
insulation
Energy Unit Review
Practice and Challenge Ourselves on our Energy Transfer and Transformation Skills
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