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Science Quiz for 7th Grade. Flashcards | StudBud
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Science Quiz for 7th Grade.
Science Quiz for 7th Grade.
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Questions
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Answers
1
Why does friction happen?
All surfaces are perfectly smooth
No surface is not perfectly smooth
No surface is perfectly smooth
Because it does
2
What is the power house of the cell?
Nucleolus
Rough ER
Mitocondria
Nucleus
3
Which one is not a fundamental force of nature?
The strong bear force
Gravitational force
Electromagnetic force
The weak nuclear force
4
Friction causes heat.
True
False
5
If the sun blew up right now, how long would it take for us on earth to see the explosion?
7 Minutes
5 Minutes
13 Minutes
8 Minutes
6
Who first discovered Gravity?
Isaac Newton
Albert Einstein
Abraham Lincon
George Washington
7
There is ONLY a positive force.
False
True
8
What year did Isaac Newton post his 3 laws of physics?
1620
1892
1893
2014
9
How many right hand rules are there?
3 1/2
3
1
4
10
What is the smallest living unit of life?
Cells
Atoms
Water
Bacteria
11
Gravity is a push or pull motion.
True
False
12
Why do we have high and low tide? (Mainly)
People going in the water
The Moon
Light
Oceans
13
Glucose is produced by the liver.
No
Maybe
Yes
14
Invisible light only has 1 light color.
False
True
15
Applied force is always unbalanced.
True
False
16
Which one is not attracted to magnets.
Cobalt
Copper
Iron
Nickle
17
What does the strength of gravity depend on?
Distance
Power
Mass
Size
18
Which item doesn't use electromagnetism?
Printers
Showers
Smart phone
Hydro electric dams
19
What is the smallest unit of element.
Cell
Electrons
DNA
Atom
20
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