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