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Newton's Laws
Newton's Laws
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AP Physics 1, High School physics, Newton's Laws (Forces and Motion)
Flashcards
15 cards
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Questions
15
Answers
1
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
2
In absence of friction...
The tires would slip
The person will accelerate
This person will not accelerate
The person would go to the barber
3
If friction is negligible, the net force on the cart is...
Tcosθ
mgsinθ
Tsinθ
T
4
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
looks like a cube
has no net force acting on it
5
immediately AFTER hitting an air-hockey puck on a frictionless plane, it will generally ___
move with constant velocity
move with increasing velocity
increase its inertia
experience a net force
6
A block rests on an inclined surface as shown. Is there a non-zero net force on the block?
Yes
No
7
A cart is pulled with tension, T at an angle θ. Normal force from the ground...
Is greater than the cart's weight
is less the cart's weight
is equal to T
is equal to the cart's weight
8
A man standing in an elevator moving with constant speed upwards...
has zero net force acting on them
has a mustache
Experiences a net force
experiences greater Normal force than gravity
9
Which way will the truck accelerate due to forces from the person in the picture
up
left
none
right
10
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
11
A bug splats on the windshield of a moving vehicle. The force on the bug from the windshield
Is less than the force acting on the windshield
is zero
Is greater than the force acting on the windshield
Is equal in magnitude to the force felt by the windshield
12
When a car slams its brakes, occupants lunge forward because
the car was old
They had a net force forward
The force forward was inertia
They had inertia
13
Does the fan help propel the cart forward
no
only on Wednesdays
yes
apple sauce
14
A steak rests on a plate on a table. Which is a true comparison of normal forces
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
The table pushes the plate > the plate pushes the table
15
Which graph correctly depicts Newton's 2nd Law for a constant force applied to varied masses?
A) because the relation is linear
B) because mass is inversely related to acceleration
None. Neither graph concurs with Newton's 2nd Law
A) because mass is directly related to acceleration
