stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Forces and Motion Flashcards | StudBud
Explore
/
Forces and Motion
Forces and Motion
35 terms
·
StudBud Administration
·
553 plays
#Newton's 2nd Law of motion
Flashcards
35 cards
F
Practice quiz
P
Host live
L
Questions
35
Answers
1
An object accelerates 3 m/s
2
when a force of 6 N is applied. What is the mass of the object?
2kg
2 N
3 m/s2
18 kg
2
Which of these is an example of force?
Watching a runner run
music playing on the radio
A boiling pot of water
Pulling a casserole from the oven
3
What do you need to move a soccer ball?
friction
force
inertia
gravity
4
Gravity relates to
Push and pull
Strong force
Attraction between two masses
Falling
5
Which two of these are non-contact forces?
Magnetism and radio waves
Gravity and Friction
Tension and normal
Applied and electricity
6
Which of these is an example of friction?
Slipping on a patch of ice
Scraping your knee on a skateboard ramp
Diving into a swimming pool
Dropping a book on the floor
7
What are the linear projections coming off the plane called?
Axis readings
Headings
Vector readings
Acceleration points
8
Force is measured in
Work
Kilograms
Newtons
Weight
9
Why is it impossible to defy gravity?
Because mass is greater than weight
Gravity exists everywhere there is two masses attracting
Nothing has enough force to resist gravity
Gravity is a non-contact force
10
What is the net force of this free body diagram?
5 N
2 N
8 N
1 N
11
Is "F= m x a" an example of a theory or a law?
Law
Neither
Theory
Both
12
What are the 3 variable that relate to Newton's 2 law of motion
Acceleration, mass, gravity
Force, acceleration, mass
Mass, weight, acceleration
gravity, weight, mass
13
This refers to both speed and direction
acceleration
vector
velocity
speed
14
The relationship between mass and acceleration is
Directly proportional
Unbalanced
Increasing
Inversely proportional
15
How do you calculate mass?
Speed x time
Force x gravity
Force divided by acceleration
weight x acceleration
16
Weight is related to what?
acceleration
mass/gravity
Mass x gravity
gravity
17
700 N Force has a mass of 10kg. What is the acceleration?
7 m/s2
70 m/s2
700 m/s2
70 mph
18
A change in position over time is called?
Speed
Force
Motion
Velocity
19
When a cannon fires the cannon itself is pushed backwards. What law does this relate to
F = m x a
The Law of inertia
Newton's 3rd law
Newton's 1st law
20
Which one of these is an example of less friction
A car sliding on a wet surface
A car slamming on the brakes
A car turning a corner
A car sliding on out on ice
21
When two objects with unequal mass collide, what will they do?
change their mass
come to a complete stop
accelerate back at different rates
continue at the same velocity
22
Which object requires the most Newton's to set it into motion?
A dime
Desk
Refrigerator
School bus
23
This force opposes motion between two surfaces & is a force found in fluids, solids and gases.
applied force
gravitational force
contact force
friction
24
What is the S. I. unit for acceleration
m/s/s
m/s3
m2s
s/m2
25
A plane with 4 engines has a force of 1kN each accelerating at a speed of 100 m/s2. Mass is?
4000kg
4kg
40kg
400kg
26
A paper airplane in flight has inertia. What does this mean?
It requires force to fly.
It can only fly a few feet.
It will stay in flight unless something stops it.
acceleration equals mass
27
the position of a body is said to be motionless. It tends to not move. This is an example of?
Newton's 3rd Law
Newton's 2nd Law
The law of inertia
Newton's Law of gravity
28
Name two forces that can stop a ball on earth if it is kicked on the ground.
air resistance and friction
strong and applied force
gravity and space
friction and fraction
29
What is this diagram called?
Full body diagram
Free body diagram
Physics diagram
Free box diagram
30
Driving 35 mph is an example of what?
speed
vector
acceleration
velocity
31
What is the speed and direction of this object
10 N East and 2 N South
4 N North
It's not moving at all
10 N East
32
A linear designation that indicates both direction and magnitude.
Valence
Vector
Force
Velocity
33
Average speed equals
Time divided by distance
Velocity change over distance
Distance divided by time
A sum total of time
34
solve for Force: 2000 grams accelerating 2m/s
2
4 N
2 N
15 N
20 N
35
When a force acts on an object it changes what two factors?
reference point and vector
speed and direction
acceleration and time
balance to unbalanced
