A man standing in an elevator that accelerates upwards...

experiences greater normal force than gravity, and weighs more than normal

A man standing in an elevator moving with constant speed upwards...

has zero net force acting on him

Which graph correctly depicts Newton's 2nd Law for a constant force applied to varied masses?

B) because mass is inversely related to acceleration

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

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04 Newton's Laws

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AP Physics 1, High School physics, Newton's Laws (Forces and Motion)

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Questions 12

Answers

1
immediately AFTER hitting an air-hockey puck on a frictionless plane, it will generally ___
experience a net force
move with constant velocity
increase its inertia
move with increasing velocity
2
If friction is negligible, the horizontal net force on the cart is...
Tcosθ
T
mgsinθ
Tsinθ
3
A man standing in an elevator that accelerates upwards...
experiences greater normal force than gravity, and weighs more than normal
Experiences a normal weight
experiences a lesser normal force than gravity, and weighs less than normal
has zero net force acting on him
4
Which way will the truck accelerate due to forces from the person in the picture
right
up
left
none
5
A man standing in an elevator moving with constant speed upwards...
has a dashing mustache and apparently less weight
experiences greater normal force than gravity
Experiences a net force
has zero net force acting on him
6
Does the fan help propel the cart forward
yes
apple sauce
only on Wednesdays
no
7
Which graph correctly depicts Newton's 2nd Law for a constant force applied to varied masses?
A) because mass is directly related to acceleration
None. Neither graph concurs with Newton's 2nd Law
A) because the relation is linear
B) because mass is inversely related to acceleration
8
A projectile baseball after it reaches maximum height
looks like a cube
has no net force acting on it
is accelerating more rapidly than it did on the way up
has a net force acting on it
9
Compare magnitudes of normal force to gravitational force.
gravity is only greater than normal if it slides
Normal Force < Weight
Normal force = weight
Normal force > weight
10
A block is at rest on an inclined surface as shown. What is the net force on the block?
zero
less than zero
9.8 N
(9.8 m/s^2)(sin 30)
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 equal in magnitude to the force felt by the windshield
is zero
Is greater than the force acting on the windshield
12
When a car slams its brakes, occupants lunge forward because
the car was old
They had inertia
They had a net force forward
The force forward was inertia

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