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PHYSICS RANDOM TRIVIA Flashcards | StudBud
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PHYSICS RANDOM TRIVIA
PHYSICS RANDOM TRIVIA
20 terms
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Questions
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Answers
1
A build up of electrical charges is called...
current electricity
static electricity
positive charge
negative charge
2
How does echolocation help animals, like bats and whales, navigate and find food?
They see in color
They emit sound waves that bounce off objects and return
They use magnetic fields to locate prey
They rely on their sense of smell
3
Ammeters measure current
False
True
4
What are force pairs?
The upward and downward forces acting on a falling object
Any forces that act simultaneously
Two forces that are equal in magnitude and opposite in direction
Two forces acting in the same direction on the same object
5
True or False
: Magnetic fields are strongest at the poles.
TRUE
FALSE
6
What type of energy does a Hot Wheels car have at the
top
of the ramp?
Normal force
Velocity
Potential Energy
Kinetic Energy
7
A baseball flying through the air has applications in fluid dynamics
True
False
8
Which electromagnetic waves travel the fastest?
Gamma rays travel fastest
Light travels faster if it's a shorter wavelength
Visible light travels fastest
All electromagnetic waves move at the same speed in a vacuum
9
Why did the photon refuse to check a suitcase at the airport?
Because it was traveling light!
I don't know
It forgot it's ID
It had too many bags
10
Which of these uses electromagnets?
doorbells
junkyard cranes
speakers
all of the above
11
An important formula in physics is shown below. Solve the formula for the variable m_{_1}.
m_{_1}=Fr^2/Gm_{_2}
m_{_1}=FGm_{_2}/r^2
m_{_1}=Fr^2−Gm_{_2}
m_{_1}=F/Gm_{_2}r^2
12
Movie Trivia: In the movie
Up
the creators made how many balloons?
10,297
11,056
8,375
14,807
13
We can determine the value of a resistor by...
counting the number of loops
measuring the size
Looking at the colors of the bands
Using a voltmeter and checking the direction of current
14
Similar charges ___________ each other.
attract
neutralize
repel
balance
15
"Dynamics" is the topic in physics that describes
Waves
WHY objects move
HOW objects move (describing motion)
Energy
16
What is true about the normal force?
it only exists when an object is moving
always acts perpendicular to the surface in contact
it acts in the same direction as gravity
is always up
17
When two objects collide, the total momentum of the system is conserved (if there are no external forces)
True
False
18
An object in motion will remain in motion unless acted upon by an external force.
True
False
19
Why do airbags reduce injuries in car crashes?
They increase the time over which your momentum changes
They block your view so you can’t see the crash
They make the seatbelt work better
They stop the car from moving
20
Why don’t scientists trust QUARKS?
Because they have a lot of energy
Because they make up everything!
Because they are small
Because ???
