NEW
Font size
WorksheetsFinal REVIEW - First Semester - 2020/2021, Day 2
Total questions: 41
Worksheet time: 49mins
A textbook is dropped from a second floor window and falls to the ground. What happens to the velocity as the book falls to the ground
the velocity increases
the velocity decreases
the velocity remain constant
A ball rolls 15.0 m in 15.0 seconds. What is its average velocity?
Equation: (V = d/t)
15 m/s
1.0 m/s
30 m/s
1.5 m/s
What is the difference between speed and velocity?
Speed measures how far something has traveled, while velocity also tells you direction.
Speed measures how fast something has moved, while velocity also tells you direction.
Speed and velocity are basically the same thing.
Both speed and velocity will tell you how fast something moves, but speed also specifies a direction.
A car accelerates from 35 m/s to 45 m/s in a time span of 2.3 seconds. What is the car’s acceleration?
a = Vf - Vi / t
15.2 m/s
19.6 m/s2
4.4 mph
4.35 m/s2
A bicyclist rides his bike at a constant velocity. How can his acceleration be described?
Zero
Positive
Negative
Changing
Newton’s First Law of Motion is also known as the Law of _____.
Meters
Inertia
Equilibrium
Vectors
According to Newton’s second law of motion,
Acceleration = Force x mass
Force = mass x acceleration
Force = mass/acceleration
mass = Force x acceleration
The statement, “To every action there is an equal and opposite reaction” describes which Law of motion?
First
Second
Third
Fourth
A driver slows down from 45 m/s to 20 m/s in 5 s. What is his acceleration?
5 m/s^2
-5 m/s^2
25 m/s
-25 m/s^2
What is the acceleration of the object from 15-40s?
1 m/s/s
-1 m/s/s
4 m/s/s
-4m/s/s
Which of the following is an interval when the object is speeding up?
10-15s
15-30s
30-40s
40-55s
A push or pull exerted on a body or object is:
speed
inertia
distance
force
In SI, weight is measured in units called ____________, while mass is measured in units called grams and kilograms.
Newtons
pounds
liters
kilograms
What is the main difference between weight and mass?
There is no difference, they mean the same thing.
Mass is a force, Weight is a measure of amount of matter.
Weight is a force, Mass is a measure of amount of matter.
Inertia is related to an object’s __________.
force
velocity
mass
motions
A merry-go-round horse moves at a constant speed but a changing ______.
velocity
inertia
balanced force
unbalanced force
A baseball player hits a ball with 400 N of force. How much force does the ball exert on the bat?
300
400
500
Not enough info to tell
When you jump up, you push the earth downwards. Why can't you tell that the earth has moved?
The force of you jumping up doesn't actually push the earth down.
The earth has much more mass so it doesn't move at all
The earth is firmly rooted
The earth has much more mass so you can't tell that it moved
In space, rockets move by shooting air backwards. What moves faster the air or the ship?
Neither, they both move at the same speed
The ship because it has more mass
The air because it has less mass
The ship because it is moving forwards
Two students with different masses are sitting in roll-y chairs. The lighter one uses his feet to push the other
The lighter student will move faster because he has less mass
The heavier student will move more because he is being pushed
They will move with the same speed
The heavier student shouldn't move at all
Can you push harder with one hand against the other?
Yes, always
No, never
Yes, but it depends on how hard you push
No, but this one is not the correct answer
When wearing socks, why is it easier to walk on carpet than a smooth hard floor?
There is more friction on the hard floor
The soft carpet feels better on your feet
There is more friction on the carpet
The hard floor pushes against you harder
When you jump upwards, what force is moving you upwards once you leave the ground?
Gravity on to you
The air on to you
You on to the earth
There is no upward force once you leave the ground
A bug splats onto the windshield of a car. Which object has the greater acceleration?
The bug
The car
Both have the same acceleration
Not enough information to tell
Two classmates play a game of tug of war on ice. Which student would win?
The lighter student because he could slide on the ice easier
The heavier student because he has more mass
Without friction, neither student would win
Both students go backwards because of the force of the rope back onto them
If you weigh 1000 N and hang from a pair of ropes, what is the force of tension in each rope?
1000 N
10 N
500 N
Not enough info to tell
