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Energy Conservation And Transfer
Test Description: 6th grade Science: Energy
Instructions: Answer all questions to get your test result.
1) Which material is the best conductor of electricity?
A
Metal
B
Wood
C
Stone
D
Plastic
2) Energy is transferred from the sun to Earth mainly by _______________
A
Electromagnetic waves
B
Air Currents
C
Sound Waves
D
Compressional waves
3) Which is not a factor that will increase an object’s temperature?
A
The amount of light reflected
B
Increasing the length of time
C
Amount of light absorption
D
Increasing the intensity of the light shining on it
4) Light waves shining through an object is called what?
A
Transmitted
B
Scattered
C
Reflection
D
Absorption
5) When colors are detected by the human eye, they can be classified as:
A
Infared
B
Visible Light
C
Ultraviolet
D
Radio Waves
6) When you are riding a bicycle at night, your bicycle's reflectors help people in cars see your bicycle. How do bicycle reflectors work?
A
They are hooked up to batteries that allow them to produce light.
B
They bounce light back from other sources.
C
They are made of a special material that gives off its own light.
D
They are covered with paint that glows in the dark.
7) If you leave a chocolate chip cookie on a windowsill during a bright, sunny day how could you prevent it from melting?
A
Put an object over it so the sun is reflected.
B
Place it closer to the window.
C
Put a magnifying glass over the cookie.
D
Nothing, chocolate chips don’t melt.
8) In general, metals are _________________.
A
poor conductors of heat
B
Brittle
C
poor conductors of electricity
D
good conductors or heat
9) Thermal energy is transferred through a material by the collision of _________within the material.
A
Matter
B
Crystals
C
Atoms
D
Light
10) Which of the following waves is not visible to the human eye?
A
Blue Light
B
Red Light
C
Violet Light
D
Ultraviolet Light
11) The change in the direction of a wave when it enters a new medium is called _______________
A
Refraction
B
Diffraction
C
Reflection
D
Superposition
12) Which of the following materials is the best insulator?
A
Gold
B
Copper
C
Wood
D
Nickel
13) Which kind of energy is produced by generators at a dam?
A
Nuclear
B
Solar
C
Chemical
D
Electrical
14) When you hold an ice cube, your hand feels cold because
A
Your hand is a better conductor of heat than the ice cube.
B
Heat flows from your hand to the ice cube by conduction
C
Ice is a poor conductor of heat.
D
The cold flows from the ice cube to your hand by conduction
15) What is the primary source of energy on Earth?
A
Rock
B
Water
C
The Sun
D
Moon
16) What form of energy causes an ice cube to melt?
A
Sound
B
Mechanical
C
Magnetic
D
Heat
17) What are often called the building blocks of matter?
A
Molecules
B
Atoms
C
Compounds
D
Cells
18) Which of the following involves a change in physical properties only?
A
Baking of a loaf of bread
B
Mixing with an acid.
C
Burning wood in a fire
D
Freezing water into ice
19) What is the name of the change that occurs when a gas turns into a liquid?
A
Condensation
B
Melting
C
Duplication
D
Vaporization
20) Which of the following involves a change in chemical properties?
A
Tearing a piece of paper to make smaller pieces of paper
B
Boiling water to make steam
C
Mixing baking soda and vinegar to make a bubbles of carbon dioxide
D
Melting a bar of solid gold to make liquid gold
*select an answer for all questions
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