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Duplicate of Newton's Law
Duplicate of Newton's Law
42 terms
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Quiz on Newton's Laws and forces #physics #newtonslaws
Flashcards
42 cards
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Questions
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Answers
1
Force created when a large object (like a planet) attracts another toward it.
Applied
Gravity
Tension
Normal
2
What is the acceleration of an object with a 42 Newton force that has a mass of a 6 kg?
7 N
7m/s2
252 m/s2
3
Frictional force which acts on objects travelling through air.
Applied
Air Resistance
Normal
Kinetic Friction
4
If the mass of an object is decreased, its inertia
Increases
Decreases
Remains in motion
5
Movement of an object in a straight line
linear motion
centripedal motion
accelerated motion
6
Force applied to an object by another object or person
Tension
Normal
Spring
Applied
7
Force equals mass times acceleration. F=m*a
Newton's 2nd
Newton's 1st
Newton's 3rd
8
Exerted by a spring when objects are connected to both ends
Tension
Normal
Spring
Applied
9
Force that opposes motion between two surfaces
Newton's 1st
Force
Friction
10
If the sum of all the forces acting on a moving object is zero, the object will
slow down and stop
accelerate uniformly
continue moving with constant velocity
change the direction of its motion
11
What is the unit for acceleration?
N
m/s2
m/s
Depends on Speed
12
1 Newton = 1 kg • m/s2
False
True
13
Which object has the greatest inertia?
a 20.-kg object at rest
a 15-kg object moving at a speed of 1.0m/s
a 5.0-kg object moving at a speed of 5.0m/s
a 10.-kg object moving at a speed of 3.0m/s
14
Rockets can be used to specifically illustrate action/reaction which is which Newton’s law?
2nd
Law of Gravitation
3rd
1st
15
Forces
only
exist as a result of an interaction.
True
False
16
An object persists in uniform motion in a straight line unless disturbed by an unbalanced force
Newton's 3rd
Newton's 2nd
Newton's 1st
17
Force is a quantity that is measured using the standard metric unit known as
Kilogram
Newton
gram
18
In a weightless environment, would it require a force to set an object in motion?
Yes
No
19
Diagram used to visualize the magnitude and direction of all forces acting upon an object.
Motion
Picture
Free Body
Venn
20
Identify the formula below
Law of Forces
Newtons 2nd Law
Law of Universal Gravitation
Freefall
21
20 N --> + 20 N --> =
0 N -->
-40 N -->
40 N -->
22
Support force that is in contact with another stable object
Tension
Normal
Applied
Spring
23
Distance traveled per unit time
Velocity
Acceleration
force
24
The sum of all forces acting upon an object is known as:
gross force
net force
static force
kinetic force
25
Which body is in equilibrium?
a projectile climbing to its highest point in its trajectory
) a satellite orbiting Earth in a circular orbit
a bus moving with a constant speed
a ball falling freely toward the surface of Earth
26
Force exerted by a surface as an object moves across it.
Applied
Air Resistance
Normal
Sliding Friction
27
When all the forces acting upon an object balance
Equilibrium
Unbalanced Force
Force
28
Calculate the mass of an object moving with a 20N force and an acceleration of 5m/s
2
4N
4kg
100kg
100N
29
10 N East + 10 N West =
0 N
20 N West
20 N East
30
A force is described as _________ or _________ that acts on an object.
push or pull
gravity or friction
31
Force transmitted through a string, wire, rope, and or cable when objects are at both ends
Spring
Tension
Normal
Applied
32
Force is not a vector quantity.
False
True
33
The result of unbalanced forces
acceleration
rest
constant velocity
34
Which situation describes an object that has no unbalanced force acting on it?
a hockey puck moving at constant velocity across ice
a laboratory cart moving down a friction less 30.°incline
an apple in free fall
a satellite orbiting Earth
35
The resistance an object to a change in its state of motion.
Friction
Newton's 3rd
Inertia
36
<-- 40 N + 20 N --> =
<-- 60 N
60 N -->
<-- 20 N
37
Name the two types of friction
angular & momentum
applied & normal
static & kinetic
hot & cool
38
The more inertia that an object has, the more mass that it has.
True
False
39
Calculate the force of a 21 kg football player running at a rate of 3 m/s²
63 N
7 N
63 m/s
7 m/s
40
For every action, there is an equal and opposite reaction
Newtons 2nd Law
Newtons 3rd Law
Newtons 1st Law
41
30 N South + 50 N North =
80 N South
80 N North
20 N North
42
What does " L " represent in the formula below?
law of force
angular momentum
latitude
friction