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Physics Final Review! Flashcards | StudBud
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Physics Final Review!
Physics Final Review!
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Review for physics final! #physics
Flashcards
34 cards
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Practice quiz
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Questions
34
Answers
1
What is the symbol for INITIAL velocity?
V
Vi
Vif
Vf
2
What is POTENTIAL energy?
physics?
The energy possessed by an object; the ability to do work
energy in motion
the rate of doing work
3
In a two body collision...
Kinetic energy is sometimes conserved
Potential Energy is always conserved
Nothing is conserved
Momentum is always conserved
4
What is net force?
The total amount of impulse exerted on an object
The total amount of force exerted on an object
The total amount of power exerted on an object
The total amount of gravity exerted on an object
5
Seat belts being worn in a car accident MOSTLY relates to which of Newton's Laws?
Newton's Second Law
Newton's First Law
There is no such thing as seat belts or Newton's Laws
Newton's Third Law
6
What is the force that opposes motion?
Mass
Gravity
Friction
Acceleration
7
Will you pass your physics final?(:
Nope not a chance
Probabaly, maybe
Yes, 100%!
What even is physics?
8
What is DISPLACEMENT?
How far out of place an object is
A measure of the object's length
The starting point of an object
Ending point of an object's motion
9
What is Mechanical Energy?
PE=KE=ME
KE+PE= ME
p=mV
Mechanical Energy does not exsist
10
A bowling ball and a golf ball are dropped at the same time- what hits the ground first?
Bowling Ball
They hit at the same time
They both just disappear
Golf Ball
11
What is the acceleration of a DROPPED object?
0 m/s2
-100 m/s2
-9.8 m/s2
-5.7 m/s2
12
What equation represents Newton's Second Law?
p=mV
F=ma
F=mV
PE=KE
13
What is the unit for FORCE?
Joules
Watts
Meters
Newtons
14
What is VELOCITY?
The component perpendicular to the surface of contact
The same thing as speed
Rate that a position of an object changes relative to time
The tendency of a moving object to continue moving
15
Two objects stick together & move with a common velocity after colliding, what collision is it?
Inelastic
There is no type of collision
Perfectly elastic
Elastic
16
What is the symbol for POWER?
What?
m
P
a
17
Baseballs with masses of 0.1kg & 0.3kg are dropped from the highest seats-which one hits first?
They both never hit the field
They both hit at the same time
The 0.1kg baseball
The 0.3kg baseball
18
What is the equation for KINETIC Energy?
KE= 1/2mv2
p=mV
There is no equation for Kinetic Energy
PE=KE
19
What equation is used to solve KINEMATICS problems?
I have no idea what kinematics are and I'm so confused
Vf2=Vi2 +2aΔd
aΔ=1/2V2
m1V1+m2V2i=(m1+m2)Vf
20
A 0.2kg apple is moving with a speed of 1.2m/s. What is its kinetic energy?
144J
0.154J
0.144J
The apple doesn't have kinetic energy
21
What is the unit used for ACCELERATION?
Meters
Meters per second
Joules
Meters per second squared
22
What is the force that is always pointing down on a free body diagram?
Momentum
Acceleration
Velocity
Gravity
23
What is the velocity of an object at rest?
-9.8 m/s
5.79 m/s
0 m/s
7.7 m/s
24
Which object has more mass... a 100N weight on the Earth or the Moon?
Earth
They are the same
Moon
There is no answer
25
A car weighs 16500 N. What is its mass?
1683.7kg
1863.7kg
16.837kg
168.37kg
26
What is DISTANCE?
A measure of an object's resistance to acceleration
How much ground an object has covered
The force of gravity on an object
The rate of doing work
27
What is the symbol for FINAL velocity?
Vi
Vf
V
Vif
28
Calculate the weight of this 2.5kg frog using the equation W=mg.
25lbs
24.5lbs
255lbs
24.5kg
29
What is MASS?
How far out of place an object is
The force of gravity on an object
A measure of an object's resistance to acceleration
The tendency of an object to be heavy
30
What is the unit for POWER?
Joules
Newtons
Meters
Watts
31
What is force?
The rate at which an object covers distance
The rate of doing work
A push or pull of an object that results in change
The force of gravity on an object
32
Define weight
the force exerted on a body by acceleration
the force exerted on a body by momentum
the force exerted on a body by Newton's Laws
the force exerted on a body by gravity
33
A car starts from rest and speeds up to 20m/s in 10s. What is its acceleration?
2m/s2
200m/s
200m/s2
2m/s
34
What is MOMENTUM?
The force of gravity on an object
The rate of doing work
When a force is applied to an object, it moves that object
The tendency of a moving object to continue moving
