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Forces & Motion Flashcards | StudBud
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Forces & Motion
Forces & Motion
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1
Equation for calculating speed
distance/ time
distance x time
distance x area
2
motion definition
measurement of how an object moves in a given amount of time
speed in a specific direction
change is position over time
total distance traveled over a total time
3
Describe the motion:
Balanced no motion (subtract)
Unbalanced 40 N right (add)
Unbalanced 0 N (subtract)
Balanced 40 N right (add)
4
An example of Newton’s third law of motion (action-reaction) would be
Diver jumping of diving board
All of above
A dumbbell resting on the floor
basketball jumping to take a shot
5
Speed in a specific direction is called...
Velocity
Acceleration
Force
Mass
6
Which of the following forces is NOT a contact force?
Air Resistance
Applied
Gravity
Spring
7
Newton’s third law of motion describes
balanced forces
action and reaction forces.
net force
resting forces
8
What equation can I use to find momentum?
Momentum = Mass x Acceleration
Momentum= Mass x Velocity
9
You can show something is in MOTION by using a:
Reference Point
Tree
Motion Line
10
In physics terms, acceleration is:
only slowing down
any change in velocity
only speeding up
sitting still
11
Calculate the net force.
50 N to the left
50 N to the right
200 N to the right
200 N to the left
12
A golf ball continues to roll until friction and gravity stop it...
Newton's 3rd Law
Newton's 2nd Law
Newton's 1st Law
13
Is the picture showing a contact or non-contact force.
contact
non-contact
14
PHYSICS: Which one is a contact force?
Gravity
Magnetism
Friction
Static electricity
15
What is force (Physics)?
A Pull or push
When two bodies rub against each other
Action and Affect
Movement
16
Newton's laws of motion
None of the above
Newton 3rd law of motion
Newton's 2nd law of motion
Newton 1st law of motion
17
As mass increases, gravitational force _____.
decreases
increases
18
Gravity is an example of contact or non-contact force?
Non-contact Force
Contact Force
19
Speed vs Velocity
Velocity is speed with a direction, while speed does not have a direction.
Velocity can only be horizontal, while speed can only be vertical.
There is no difference.
Velocity uses speed, while speed can only be vertical.
20
Describe the motion:
Balanced 3 N left
Balanced no motion
Unbalanced 3 N right
Unbalanced 3 N left
21
Describe the motion
Unbalanced no motion
Balanced motion to right
Balanced no motion
Unbalanced motion to the left
22
Which of these objects have the most momentum
A light object moving fast
A heavy object moving fast
A light object moving slowly
A heavy object moving slowly
23
In physics terms, acceleration is:
Sitting still
Only speeding up
Only slowing down
Any change in velocity
24
What is the speed of a ball traveling 100 meters in 2 seconds?
102 m/s
50 m/s
200 m/s
250 m/s
25
Newton's Laws of Motion
explains who things move the way they do
explains when things move the way they do
explains why things move the way they do
explains how things move the way they do
26
Newton's First Law of Motion is known as the LAW OF_________________
Action
Inertia
Reaction
Force
27
Physics - What are the units of force?
Newtons
Kilograms
Metres per second
Muscle strength
28
Speed and velocity are measured in Newtons.
False
True
29
Calculate the net force.
224 N to the left
224 N to the right
1,524 N to the right
1300 N to the left
30
How do you calculate momentum?
m=v/p
p=mv
m=pv
m=m'v
31
In physics, acceleration applies to...
both increases and decreases of speed
an increase of speed only
something else
a decrease of speed only
32
A 20 kg football player runs 8 m/s. What is the momentum of the football player?
16
160
28
2.5
33
____________ is a measure of the gravitational force on an object.
pressure
distance
mass
weight
34
The more momentum an object has, the harder it is to stop.
True
False
35
What defines speed in physics?
Acceleration rate
Distance over time
Time squared
Direction and distance
36
In physics, force equals...
mass divided by volume
mass times acceleration
force times distance
mass times velocity
