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WorksheetsForces Quiz
Total questions: 20
Worksheet time: 2hrs 40mins
Slick Rick weighs 900 N here on Earth. What is his mass on Mars? (gMars = 3.69 m/s2)
92 kg
339 kg
244 kg
544 kg
In what direction is the normal force on the block shown in the picture?
Up
Up 45˚ Left
Down 45˚ Right
Down
Mr. Brown pushes a truck down a stretch of highway at a constant velocity. The force of friction between the tires and the road is 8 x 106 N [W]. With what force is Mr. Brown pushing the truck?
8 x 106 N [W]
8 x 106 N [E]
16 x 106 N [E]
Not enough information to determine
The term inertia refers to...
the tendency of objects to resist changes in motion
the tendency of objects to acceleration when they are in a gravitational field
the tendency of object to return to rest when there is no net force
the resistance to motion objects experience due to friction
If the coefficient of static friction between an object and a surface decreases, the force required to get the object to move on the surface...
Increases
Decreases
Stays the same
Consider an object being pushed along a surface. If the force of gravity were to decrease, the force of friction would...
Increase
Decrease
Stay the same
A physics student pushes her 50.97 kg younger brother across the floor. The coefficient of kinetic friction between the boy and the floor is 0.25. What is the force of friction on the boy?
50.97 N
98.1 N
125 N
500 N
A well-trained dog pushes a 25 kg statue across a floor at a constant velocity with a force of 110 N. What is the coefficient of kinetic friction between the statue and the floor?
0.45
0.40
0.35
0.30
A 78 kg UAV accelerates toward the Earth. The net force on the UAV is 382 N [down]. What is the acceleration of the UVA?
9.8 m/s2 [down]
4.9 m/s2 [down]
0.2 m/s2 [down]
0 m/s2
With his tiny shoes, Tiny Tim exerts a force of 60 N [N] on the floor. In what direction does he accelerate?
North
South
He does not accelerate
A student stands on a skateboard, throws a bowling ball forward, and accelerates backward on the skateboard. This is an instance of Newton's _________ law.
First
Second
Third
Forth
A physics student uses a spoon to take a heaping scoop of ice cream. Then she flicks the ice cream at her father explaining to him that the reason the ice cream keeps moving toward his face, even though the spoon has stopped, is because of Newton's _______ law.
First
Second
Third
Forth
A (fictitious) young boy who doesn't care for his sister's cat, captures the cat and secures it in a wooden box. The boy then takes the cat-in-the-box up to the roof and drops it. The force the cat feels is:
The top of the box pushing it down
Gravity
The normal force from the bottom of the box
Hatred
In a game of Tug of War, the red team uses 600N of force to the left, and the blue team uses 200N of force to the right. Which statement below describes the game?
Forces are balanced and there is no motion
The net force is 800N and the blue team wins
The net force is 400N to the right and the red team wins
The net force is 400N to the left
A soccer ball rolling down a field changes direction. While the soccer ball is changing direction, which statement is true?
The soccer ball must have more than one force acting on it
The net force on the soccer ball is not zero
The net force on the soccer ball is zero
The direction is it moving must not change.
Gravity is an example of a ____________ force.
contact
non-contact
strong
constant
What is the force of gravity on a 5 kg eagle that is accelerating down at 3.8 m/s2?
49 N [down]
30 N [down]
68 N [down]
0 N
Standing on ice you push a friend named Pete. The force moving you backward comes from...
the ice
Pete
Yourself
There is no force pushing you backward
Travelling to a mystery planet, an astronaut places a 3 kg rock on a scale that was calibrated on Earth. The scale reads 4.5 kg. What is the gravitational field strength on this planet?
14.7 N/kg
6.4 N/kg
12,7 N/kg
Not enough information to determine
19.3 N/kg
On Venus the gravitational acceleration on the surface is 8.87 m/s2. What is the force of gravity on a 0.4386 g mass? Answer with the correct number of significant digits.
3.89 N
3.890 x 100 N
3.89 x 10-3 N
3.9 x 10-3 N
3.890 x 10-3 N
