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Forces Review
Forces Review
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High School physics, Newton's Laws (Forces and Motion)
Flashcards
25 cards
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Practice quiz
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Questions
25
Answers
1
A cart is pulled with tension, T at an angle θ. Normal force from the ground...
Is greater than the cart's weight
is equal to the cart's weight
is less the cart's weight
is equal to T
2
The child in this picture can ___ without making the block slide (given it has friction)
all of the answers are correct
accelerate downhill
accelerate uphill
remain at rest
3
A bug splats on the windshield of a moving vehicle. The force on the bug from the windshield
Is equal in magnitude to the force felt by the windshield
Is less than the force acting on the windshield
is zero
Is greater than the force acting on the windshield
4
The block is held at rest as shown. The force of static friction is directed:
up
left
down
right
5
immediately AFTER hitting an air-hockey puck on a frictionless plane, it will generally ___
move with increasing velocity
experience a net force
increase its inertia
move with constant velocity
6
A block rests on an inclined surface as shown. Is there a non-zero net force on the block?
Yes
No
7
If there is NO friction on the block, the child will ____
remain at rest
all of the answers are correct
float
accelerate
8
While on the way up the ramp the cart...
has a net force uphill
has no net force
accelerates uphill
accelerates downhill
9
A steak rests on a plate on a table. Which is a true comparison of normal forces
The table pushes the plate > the plate pushes the table
The table pushes the steak > the table pushes the plate
The steak pushes the plate < the table pushes the plate
The steak pushes the plate > the table pushes the plate
10
If M1 is greater than M2
M1 must be moving downwards
M1 accelerates upwards
M1 accelerates downwards
M1 must be moving upwards
11
A man standing in an elevator moving with constant speed upwards...
experiences greater Normal force than gravity
has a dashing mustache
Experiences a net force
has zero net force acting on them
12
Compare magnitudes of normal force to gravitational force.
Normal Force < Weight
Normal force = weight
gravity is only greater than normal if it slides
Normal force > weight
13
In absence of friction...
The person would go to the barber
The person will accelerate
The tires would slip
This person will not accelerate
14
In order to pull himself up this incline, the child can pull with a minimum force
equal to his weight
less than his weight
greater than his weight
apricot
15
If friction is negligible, the net force on the cart is...
Tsinθ
mgsinθ
Tcosθ
T
16
If the child pulls with a force equal to his weight, they will ____
fall downhill
cheese pizza
move with constant speed uphill
accelerate uphill
17
Which way will the truck accelerate due to forces from the person in the picture
none
up
right
left
18
When a car slams its brakes, occupants lunge forward because
the car was old
The force forward was inertia
They had a net force forward
They had inertia
19
Which force is of greatest magnitude?
gravity
T1
T2
normal
20
If M1 is equal in mass to M2
ham omelette
M1 an M2 cannot move
M1 and M2 cannot accelerate
The ropes must break
21
A projectile baseball after it reaches maximum height
has a net force acting on it
is accelerating more rapidly than it did on the way up
has no net force acting on it
looks like a cube
22
Does the fan help propel the cart forward
only on Wednesdays
apple sauce
yes
no
23
It is possible for the guy to accelerate forward due to ___
both answers above
Newton's 2nd Law
none of the above
static friction
24
If the cart is not accelerating and the angles are equal, then ___
T1 and T2 are equal in magnitude
the eyelet screws are not necessary
T1 and T2 are not equal in magnitude
normal force is less than T2
25
A man standing in an elevator that accelerates upwards...
would register a lighter weight standing on a scale
Experiences a net force
experiences greater Normal force than gravity
has zero net force acting on them
