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HHS Newton's Law Review Flashcards | StudBud
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HHS Newton's Law Review
HHS Newton's Law Review
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Quiz on Newton's Laws and forces #physics #newtonslaws
Flashcards
37 cards
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Questions
37
Answers
1
Calculate the mass of an object moving with a 20N force and an acceleration of 5m/s
2
4kg
4N
100N
100kg
2
The resistance an object to a change in its state of motion.
Newton's 3rd
Inertia
Friction
3
Force is not a vector quantity.
True
False
4
The result of unbalanced forces
constant velocity
rest
acceleration
5
If the sum of all the forces acting on a moving object is zero, the object will
continue moving with constant velocity
accelerate uniformly
change the direction of its motion
slow down and stop
6
Movement of an object in a straight line
accelerated motion
linear motion
centripedal motion
7
Force that opposes motion between two surfaces
Friction
Newton's 1st
Force
8
Force transmitted through a string, wire, rope, and or cable when objects are at both ends
Applied
Normal
Spring
Tension
9
What is the acceleration of an object with a 42 Newton force that has a mass of a 6 kg?
7m/s2
7 N
252 m/s2
10
Force exerted by a surface as an object moves across it.
Applied
Normal
Sliding Friction
Air Resistance
11
Which situation describes an object that has no unbalanced force acting on it?
a satellite orbiting Earth
an apple in free fall
a laboratory cart moving down a friction less 30.°incline
a hockey puck moving at constant velocity across ice
12
Which body is in equilibrium?
) a satellite orbiting Earth in a circular orbit
a ball falling freely toward the surface of Earth
a projectile climbing to its highest point in its trajectory
a bus moving with a constant speed
13
Support force that is in contact with another stable object
Normal
Spring
Applied
Tension
14
10 N East + 10 N West =
0 N
20 N West
20 N East
15
30 N South + 50 N North =
20 N North
80 N North
80 N South
16
Which object has the greatest inertia?
a 10.-kg object moving at a speed of 3.0m/s
a 5.0-kg object moving at a speed of 5.0m/s
a 20.-kg object at rest
a 15-kg object moving at a speed of 1.0m/s
17
When all the forces acting upon an object balance
Equilibrium
Force
Unbalanced Force
18
20 N --> + 20 N --> =
-40 N -->
40 N -->
0 N -->
19
An object persists in uniform motion in a straight line unless disturbed by an unbalanced force
Newton's 1st
Newton's 3rd
Newton's 2nd
20
If the mass of an object is decreased, its inertia
Increases
Remains in motion
Decreases
21
<-- 40 N + 20 N --> =
<-- 60 N
<-- 20 N
60 N -->
22
Force created when a large object (like a planet) attracts another toward it.
Tension
Normal
Gravity
Applied
23
Frictional force which acts on objects travelling through air.
Kinetic Friction
Normal
Applied
Air Resistance
24
The sum of all forces acting upon an object is known as:
kinetic force
gross force
static force
net force
25
Force is a quantity that is measured using the standard metric unit known as
gram
Kilogram
Newton
26
Forces
only
exist as a result of an interaction.
True
False
27
Rockets can be used to specifically illustrate action/reaction which is which Newton’s law?
Law of Gravitation
1st
2nd
3rd
28
For every action, there is an equal and opposite reaction
Newtons 2nd Law
Newtons 3rd Law
Newtons 1st Law
29
In a weightless environment, would it require a force to set an object in motion?
Yes
No
30
Distance traveled per unit time
force
Velocity
Acceleration
31
Force equals mass times acceleration. F=m*a
Newton's 1st
Newton's 2nd
Newton's 3rd
32
The more inertia that an object has, the more mass that it has.
False
True
33
1 Newton = 1 kg • m/s2
True
False
34
Calculate the force of a 21 kg football player running at a rate of 3 m/s²
63 m/s
7 N
63 N
7 m/s
35
Diagram used to visualize the magnitude and direction of all forces acting upon an object.
Motion
Free Body
Picture
Venn
36
What is the unit for acceleration?
N
m/s
Depends on Speed
m/s2
37
Force applied to an object by another object or person
Tension
Spring
Applied
Normal