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Forces Review (no trig) Flashcards | StudBud
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Forces Review (no trig)
Forces Review (no trig)
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High School physics, Newton's Laws (Forces and Motion)
Flashcards
18 cards
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Practice quiz
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Questions
18
Answers
1
When a car slams its brakes, occupants lunge forward because
the car was old
They had a net force forward
They had inertia
The force forward was inertia
2
Your feet apply a force of 500 N to the floor. What is the magnitude of the force the floor applies to you?
500 N, Newton's second law
0 N, Newton's third law
0 N, Newton's first law
500 N, Newton's third law
3
A contact force that is perpendicular to a surface is called a...
force of gravity
normal force
applied force
natural force
4
In absence of friction...
The person would move at constant velocity
The person will accelerate
The person would go to the barber
This person will not accelerate
5
A bug splats on the windshield of a moving vehicle. The force on the bug from the windshield
is zero
Is less than the force acting on the windshield
Is equal in magnitude to the force felt by the windshield
Is greater than the force acting on the windshield
6
A block rests on an inclined surface as shown. Is there a non-zero net force on the block?
No
Yes
7
A projectile baseball after it reaches maximum height
is accelerating more rapidly than it did on the way up
looks like a cube
has a net force acting on it
has no net force acting on it
8
An astronaut throws a tool in space. What law explains why the screwdriver will move at constant velocity?
Newton's third law
Newton's first law
Newton's second law
Newton's fourth law
9
immediately AFTER hitting an air-hockey puck on a frictionless plane, it will generally ___
experience a net force
move with increasing velocity
move with constant velocity
increase its inertia
10
Compare magnitudes of normal force to gravitational force.
Normal force = weight
Normal Force < Weight
Normal force > weight
gravity is only greater than normal if it slides
11
A man standing in an elevator moving with constant speed upwards...
experiences greater Normal force than gravity
has a dashing mustache
has zero net force acting on them
Experiences a net force
12
Which way will the truck accelerate due to forces from the person in the picture
up
left
none
right
13
On frictionless ice, a hockey stick applies a force of 120 N to a hockey puck. What happens to the puck?
Both blue and yellow
It applies a force of 120 N on the stick, Newton's third law
It accelerates, Newton's second law
Nothing, Newton's first law
14
A man standing in an elevator that accelerates upwards...
has zero net force acting on them
Experiences a net force
15
In the image, T1 and T2 are equal in magnitude. This means the horizontal forces are balanced. Will it accelerate?
No
Yes
16
If friction is negligible, the cart will...
accelerate to the right
accelerate to the left
move at a constant velocity
accelerate upwards
17
A steak rests on a plate on a table. Which is a true comparison of normal forces? (READ CAREFULLY)
The steak pushes the plate > the table pushes the plate
The steak pushes the plate < the table pushes the plate
The table pushes the steak > the table pushes the plate
The table pushes the plate > the plate pushes the table
18
The block is held at rest as shown. The force of friction is directed:
down
right
left
up
