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