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Even more challenging physics quiz
starting easy and progessing to hard questions. a basic knowledge of physics would help! 15 Questions.
Created by:
ingy
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1
What is the SI unit for electric current?
Amp
Volt
Watt
2
What is the formula for potential energy on earth?
(1/2)mv^2
mgh
mc^2
3
If a galaxy is hurtling towards us will its light be?
Red-shifted
Yellow-shifted
Blue-shifted
4
Two 90-decibel sound sources are turned on at the same time. Together they create how many decibels?
180
90
93
5
An insect flying down a railroad at 1 m/s collides with the windshield of an oncoming train travelling at 130km/hr, which exerts a higher force on the other?
The windshield on the insect
The insect on the windshield
They produce equal force
6
Which experiences the greatest pressure at the bottom?
A 10m deep, 20 km wide lake
A 20 m deep, 10 km wide lake
A 25 m deep, 1 m wide well
7
If you add 1 neutron to a helium nucleus what element would you end up with?
Lithium
Helium
Hydrogen
8
Leaving your fridge door open in an enclosed room will have what effect to the temperature in the room? (assuming no heat transfer in or out of the room)
Raise the temp
Lower the temp
Have no effect
9
How many electrons are found in the outer most shell of a silicon atom?
3
4
5
10
A racecar driver races around a circular track with a diameter of 64m. He does only 1 lap and stops exactly at the same point he started, what is his displacement?
201m
3217m
0m
11
Impulse is best related to what?
Change in momentum
Momentum
Change in kinetic energy
12
If the frequency of sound is doubled, what effect is had on the wavelength?
Wavelength doubles and the speed remains unchanged
Wavelength halves and the speed remains unchanged.
Wavelength is unchanged and the speed doubles.
13
If the earth were to suddenly stop rotating but didnt change shape, which of these would be true?
The weight of an object at the equator would decrease.
The weight of an object at the north pole would increase.
The weight of an object at the equator would increase.
14
Two coins are dropped from two different buildings. coin one falls freely for 4seconds and coin two falls freely for 8 seconds. Compared to coin one, coin two falls how much farther?
Twice as far
Four times as far
Sixteen times as far
15
If the net force on an object were doubled while at the same time the mass of the object was halved, then the acceleration of the object is what?
4 times greater
2 times greater
1/4 as great
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