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Duplicate of Duplicate of Newtons Laws and Forces Review
Duplicate of 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
What types of forces are acting on a child sliding down a slide?
Gravity, normal, and friction
Gravity, tension, and friction
Gravity only
Gravity, applied, and normal
2
Newton's first law states that objects at rest tend to stay at rest unless...
Acted upon by an outside force
acted upon by an inside force
Objects at rest don't tend to stay at rest.
acted upon by a balanced force
3
What is the correct unit for force?
m/s/s
kg
m/s
N
4
What is the correct unit for acceleration?
N
m/s/s
kg
m/s
5
In what direction does the normal force act?
Perpendicular to the surface
Always opposite the force of gravity
Parallel to the surface
Always straight up
6
A car accelerates at 6 m/s/s. Are the forces on this car balanced?
No
Yes
Not enough information
7
What would be the acceleration of a 15 kg ball pushed with 30 N of force?
2 m/s/s
0.5 m/s/s
45 m/s/s
450 m/s/s
8
Newtons second law involves which quantities?
Mass, force and velocity
Inertia and mass
Mass, force, and acceleration
Speed and distance
9
What types of forces are acting on this object?
Gravity and applied
Gravity and tension only
Normal and tension only
Gravity, tension, and normal
10
On a free body diagram, the direction of gravity is
To the left
Always straight down
Dependant on the direction of the normal force
Dependent on the slant of the ground
11
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
12
Melissa pushes on a curling rock with 75N of force. It accelerates at 3m/s/s. What is its mass?
78 kg
0.04 kg
225 kg
25 kg
13
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
14
Newtons third law implies that if Andrey pushes on a skateboard...
the skateboard pushes Andrey with an equal amount of force
The skateboard will accelerate at the same rate as Andrey
the skateboard will push on Andrey but with less force
The skateboard will not accelerate
15
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 only
Gravity and tension
16
When do we know to use the force of tension?
When there is a surface
When there is a rope, string, or chain
When there is gravity
We can never know
17
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
18
True or false: Inertia is a force
False
True
19
If Danny applies 35 N of force to a 50 kg cart, how fast will it accelerate?
85 m/s/s
1.43 m/s/s
1750 m/s/s
0.7 m/s/s
20
What force must be applied to a 25000 kg airplane to accelerate it at 5 m/s/s?
25005 N
.0002 N
125000 N
5000 N