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WorksheetsPhysics Semester Review - 1
Total questions: 45
Worksheet time: 27mins
What is your slope in a Position Time Graph
acceleration
velocity
displacement
change in direction
What is newtons 2nd law
Total momentum of a system must be conserved
every action has an equal and opposite reaction
an object must stay in its current state unless acted on by an outside force
F=ma
How do we calculate an objects weight in Newtons when given its mass?
F=ma
P=mg
Fg=mg
ma=Fn-Fg
What type of force is Gravitational?
Contact
Field
What should you do FIRST when solving a force calculation
list knowns and unknowns
rearrange your equation
draw a force diagram
What must you know in force calculation problems
velocity
normal force
acceleration
gravity
Which of these is radius dependent
tangential velocity
angular velocity
centripetal acceleration
centrifugal acceleration
What is centripetal acceleration
rate of change of the angle
rate that velocity changes direction
inertia
force that keeps an object moving in a circular motion
True or False: Potential energy may not be used
true
false
What is a closed system
energy can freely leave the system
the total energy in the system must remain the same
stored energy
the action of transferring energy
How do you calculate Kinetic Energy?
Ug=mgh
W=fdcosθ
F=mg
K=1/2mv^2
What is the unit for momentum
N*s
m/s
kg*m/s
kg*s/m
Which system(s) can be involved with work?
All systems can do work or can have work applied to them.
Only closed systems can have work involved.
Only open systems can have work involved.
No system can do work or have work applied to them.
What impulse is applied to an object that experiences a force given by the F-t graph?
8.5N*s
8.4N*ms
8.4N*s
84N*s
What is the unit for Tangential velocity?
km/s
rad/s
m/s^2
m/s
If you are not wearing a seat belt in a car that rounds a curve, and you slide across your seat and slam against a car door, what kind of force is responsible for your slide?
No force
Centripetal
Centrifugal
Gravity
What is the equation is Newton's 2nd Law?
Fg=mg
ΣF=ma
Δx=xf-xi
ΔF=Ff-Fi
A horizontal push force is applied to a 60kg crate. If teh push force has a magnitude of 23N to the right and the box moves at a constant velocity what is the magnitude and direction of the friction force?
-24N
-23N
23N right
20N
When is something Hookien?
When the object produces a exponential graph of stretch and elastic force.
When the object's stretch and elastic force has a nonlinear relation
When the object produces a linear graph of stretch and elastic force.
Anything that can stretch is a hookien object.
A car of mass 1050kg hits a tree and experiences an acceleration of 3.45m/s^2. Find the net force the car feels.
3025.5N
3622.5N
2656.12N
3287N
What is the best definition for acceleration?
A scalar value.
The change of distance over time.
The change of velocity over time.
How fast an object is moving.
Which is not a hidden given for free fall?
Acceleration at all points is 9.8m/s^2 down.
The final velocity in the highest point is 9.8m/s.
The initial velocity is 0m/s
The final velocity in the highest point is 0m/s
What is Newtons 1st law?
An object at rest stays at rest and an object in motion stays in motion with the same speed
Acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force
Momentum of the system must be conserved.
Every action has an equal and opposite reaction
Which of the following states that objects with mass don't like to change their motion?
1st law
2nd law
3rd law
Inertia
A rope swing tied to a tree has a
tension force
normal force
push/pull force
elastic force
The car above has a velocity pointed To the right and a Net force pointed To the right. What happens to its motion?
speeds up to the right
slows down to the left
comes to rest
slows down to the right
Which of the following objects in the below velocity vs time graph shows an object moving with constant velocity?
B
C
A
D
What is the symbol for tension?
Ft
Fs
Fn
Fp
What is the symbol for impulse?
I
J
K
L
Christina kicks a ball with 1000 N at an angle of 30 degrees. What force does she exert in the x direction (Kinematics)
30,000 N
500 N
866 N
8,666 N
A happy rabbit starts from rest and accelerates at 2 m/s^2 fro 4 meters. How much time does it take? (Kinematics)
15 s
2 s
4 s
45 s
Ben and Ronda pull on opposite ends of a rope in a game of tug-of-war. Ben is stronger than Ronda. Who exerts the larger force on the rope? (Forces & Newtons Laws)
Both exert the same amount
Ronda
Ben
Rope
If an object has a mass of 50g what is the weight of that object in Newtons? (Force Calculations)
0.049 N
0.49 N
490 N
4.9 N
Define Centrifugal? (Circular Motion & Gravitational)
Center fleeing
Center seeking
Center loving
Center fixed
A car on a flat circular track rounds a corner, what force acts as the centripetal force making the car turn? (Circular Motion & Gravitational)
Gravity
Tension
Friction
Normal
How do you convert tangential velocity to angular velocity? (Circular Motion & Gravitational)
r = w/v
w = v/r
v = w/r
v = r/w
What is the momentum of a 50 kg carton that slides at 4 m/s across an icy surface? (Conservation of Energy & Momentum)
200 kg n/s
50 n/s
200 kg m/s
16 kg m/s
Which is the strongest force?
Gravity
Weak Nuclear Force
Strong Nuclear Force
Electromagnetic
What are the units of angular velocity?
m/s
m/s/s
rad/s
Ns
Which of the following is NOT a true statement?
Work can be done on an open system to change its total energy.
When two objects collide they apply an equal and opposite impulse to each other.
The earth does no work on the moon because there is a 90o angle between the force of gravity and the motion of the moon
When two objects are dropped the more massive object will reach the ground first because earth pulls on it harder
Which of the following is NOT and equal and opposite quantity in a collision?
Force
Impulse
Change in momentum
Acceleration
Which of the following defines an elastic collision
Mechanical Energy is conserved
Mechanical Energy is NOT conserved
Total momentum is always equal to zero
Only objects with elastic properties can collide elastically
Which force binds protons and neutrons together inside of the nucleus?
Gravitational
Electromagnetic
Weak Nuclear
Strong Nuclear
The totally random motion of molecules defines which of the following
Kinetic energy
Thermal energy
Nuclear energy
Chemical energy
Which of Newton's Laws best explains why it hurts to kick a wall?
1st
2nd
3rd
Gravitation
