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WorksheetsPT Fall Semester Exam
Total questions: 55
Worksheet time: 2hrs 9mins
A car driving at 50 miles per hour drives for 2 hours. What distance did it cover?
50 miles
25 miles
100 miles
75 miles
This graph demonstrates an object that is -
Increasing speed away from the start
Moving away from the start at a constant speed
Decreasing speed toward the start
Moving toward the start at a constant speed
Which would fall with greater acceleration in a vacuum—a leaf or a stone?
the leaf
the stone
They would accelerate at the same rate.
It is difficult to determine without more information.
What is the average speed of a car that travels 35 meters in 12 seconds?
None
3.1 m/s
35 m/s
2.9m/s
Which of the following units could you use when measuring a speed?
meters
m/s
seconds
m/s2
Which of the following units could you use when measuring an acceleration?
meters
m/s
seconds
m/s2
Which of the following units could you use when measuring a time interval?
meters
m/s
seconds
m/s2
If a car is moving at constant velocity, the car's acceleration is...
0 m/s2
9.8 m/s2
-9.8 m/s2
not enough information
A ball falls for 3 seconds. How fast will it be moving when it hits the ground?
327 m/s
3.27 m/s
29.4 m/s
9.8 m/s
A rock is dropped from a cliff. It takes 5.88 seconds for the rock to reach the bottom of the cliff. What in the height of the cliff?
28.8 m
57.6 m
169 m
339 m
In which of the following situations is the object’s acceleration zero?
A skateboarder slowing and then rolling to a stop
A ball falling after being dropped from the top of a building
A car traveling at a constant speed down a straight road
A sprinter taking off at the beginning of a race
for 8 s until it finally lifts off the ground.
Determine the velocity at take-off.
Vector is a quantity with:
magnitude and direction
magnitude
direction
none of the above
What is the resultant of the two vectors shown above?
5 upward
5 downward
15 upward
15 downward
A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them.
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
Name the missing force...
weight force
normal force
applied force
frictional force
1st
2nd
3rd
A 20 kg bike accelerates at 10 m/s2. what was the force?
25 Newtons
20 Newtons
200 Newtons
10 Newtons
Which of Newton's laws are illustrated with a rocket launch?
1st Law, the Law of Inertia.
2nd Law, the Law of Acceleration.
3rd Law, the Law of Action Reaction
The Law of Conservation of Mass
Which has more MASS? A kilogram of feathers or a kilogram of iron?
a. They have the same mass
b. The feathers
c. the iron
The amount of matter in an object
Weight
Mass
Volume
Circumference
The one that stays the same no matter where you are.
Bass
Weight
Mass
Weather
What unit measures weight?
grams
Newtons
centimeters
Why would you weigh less on the moon compared to Earth?
less air
less sunlight
more gravitational pull
less gravitational pull
What is the weight of a 456g object?
456g
0.456kg
4.56N
456N
What statement is true?
Mass never changes. Weight does.
Weight never changes. Mass does.
Both mass and weight change because they are affected by gravity.
Neither mass nor weight change. They are always the same.
What is the NET FORCE of this diagram?
17 N, right
17 N, left
23 N, right
12 N, up
Match description with free-body diagram.
A book is at rest on a tabletop.
A gymnast holding onto a bar, is suspended motionless in mid-air. The bar is supported by two ropes that attach to the ceiling. Diagram the forces acting on the combination of gymnast and bar.
An egg is free-falling from a nest in a tree. Neglect air resistance.
A flying squirrel is gliding (no wingflaps) from a tree to the ground at constant velocity. Consider air resistance.
What is the force of friction between a block of ice that weighs 950 N and the ground if μ = .12?
65 N
226 N
175 N
114 N
A 800N man is playing on a seesaw with son who has a weight of 200N. If the child is sitting 3 meters away, how far will the man have to sit to balance the seesaw?
0.75m
3m
1.5m
1m
Calculate torque
33.33 Nm
.03 Nm
300 Nm
You push a wrench with a perpendicular force of 35 N. You hold the wrench handle at 0.40 m from the pivot point. Calculate the torque applied to the wrench.
14 N∙m
87.5 N∙m
34.6 N∙m
219 N∙m
The mass of the Sun is 2.0 × 1030 kg and the mass of the Earth is, me = 5.97 × 1024kg. The distance from the Earth is 1.50 × 1011km. What is the gravitational force between the Sun and the Earth?
(G = 6.67 × 10-11 N m-2 kg-2)
1.54 x 1022 N
2.54 x 1022 N
3.54 x 1022 N
4.54 x 1022 N
Calculate the gravitational force between two objects when they are 0.750m apart. Each object has a mass of 5.00kg.
2.96x10-9N
3.00x10-6N
2.22x10-9N
2.23x10-8N
