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Duplicate of Newtons Laws and Forces Review Flashcards | StudBud
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Duplicate of Newtons Laws and Forces Review
Duplicate of Newtons Laws and Forces Review
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A #physics quiz reviewing #forces, #Newton's laws and #Freebodydiagrams
Flashcards
20 cards
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Practice quiz
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Questions
20
Answers
1
Newtons third law implies that if Andrey pushes on a skateboard...
the skateboard pushes Andrey with an equal amount of force
The skateboard will not accelerate
the skateboard will push on Andrey but with less force
The skateboard will accelerate at the same rate as Andrey
2
A car accelerates at 6 m/s/s. Are the forces on this car balanced?
Yes
No
Not enough information
3
A space shuttle flings a rock in outer space. After it leaves the shuttles claw, the rock will…
Continue at a constant velocity
Continue to accelerate because of the force it was given
Slow down to a stop
4
What types of forces are acting on a sled sliding along the ground, pulled by a rope?
Gravity, normal, and friction
Gravity, friction, normal, and tension
Gravity and tension
Gravity only
5
Newton's first law states that objects at rest tend to stay at rest unless...
acted upon by an inside force
Acted upon by an outside force
Objects at rest don't tend to stay at rest.
acted upon by a balanced force
6
What types of forces are acting on a child sliding down a slide?
Gravity, applied, and normal
Gravity, normal, and friction
Gravity only
Gravity, tension, and friction
7
What types of forces are acting on this object?
Gravity, tension, and normal
Gravity and tension only
Normal and tension only
Gravity and applied
8
In what direction does the normal force act?
Always straight up
Perpendicular to the surface
Always opposite the force of gravity
Parallel to the surface
9
Newtons second law involves which quantities?
Inertia and mass
Speed and distance
Mass, force and velocity
Mass, force, and acceleration
10
What force must be applied to a 25000 kg airplane to accelerate it at 5 m/s/s?
.0002 N
125000 N
25005 N
5000 N
11
What would be the acceleration of a 15 kg ball pushed with 30 N of force?
2 m/s/s
45 m/s/s
450 m/s/s
0.5 m/s/s
12
When do we know to use the force of tension?
When there is gravity
When there is a rope, string, or chain
When there is a surface
We can never know
13
Melissa pushes on a curling rock with 75N of force. It accelerates at 3m/s/s. What is its mass?
0.04 kg
225 kg
78 kg
25 kg
14
What is the correct unit for force?
kg
m/s/s
N
m/s
15
If Danny applies 35 N of force to a 50 kg cart, how fast will it accelerate?
1.43 m/s/s
0.7 m/s/s
85 m/s/s
1750 m/s/s
16
What is the correct unit for acceleration?
m/s/s
N
kg
m/s
17
True or false: Inertia is a force
False
True
18
On a free body diagram, the direction of gravity is
Always straight down
Dependant on the direction of the normal force
To the left
Dependent on the slant of the ground
19
A crash dummy flew through the window of a car when it crashed. This is an example of...
Newton's 3rd law
Newton's 2nd law
Newton's 1st law
20
If Diego yanks a tablecloth out from under a book, the book will not move because it has
Constant velocity
Inertia
A force keeping it in place
