stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Newtons Laws Flashcards | StudBud
Explore
/
Newtons Laws
Newtons Laws
20 terms
·
StudBud Administration
·
311 plays
A physics quiz to teach Newton's three laws and forces.
Flashcards
20 cards
F
Practice quiz
P
Host live
L
Questions
20
Answers
1
What is the formula to calculate force?
F= (w)(a)
F= (a)(m)
F=(a)(g)
F= m2(a2)
2
1 Newton =
mass times acceleration (ma)
gravity times x (gx)
(kg(m))(s2)
1 joule
3
What is Newton's 1st Law also known as?
Law of Rest
Law of Inertia
Law of Equal Reaction
Law of Unbalanced Force
4
Is an example of an action-reaction pair?
No
Yes
5
Newton's first law states
an object at rest tends to stay at rest
for every action, there is an equal and opposite reaction
an unbalanced force acts on an object the object will accel.
6
This is not a free-body diagram.
True
False
7
What causes an object to reach terminal velocity?
the objects mass
air resistance (air drag)
kinetic friction
static friction
8
A man hits a golf ball (.2kg) which accelerates at a rate of 20 m/s
2
, What is F?
2 N
4 N
100 N
40 N
9
What is a contact force?
upward force, balances the weight of an object on a surface
a push or pull that is exerted on an object
Any force that acts on an object due to physical contact
anything acting on (applied) to an object
10
What is an example of a field force?
Weight
Friction
Gravity
Magnetism
11
What is the net force on the car?
10N
1.4N
3N
17N
12
Mass is the same as weight
False
True
13
All forces are (blank) on objects that are at rest or at a constant velocity.
Absent
Unbalanced
Accelerating
Balanced
14
According to Newton's Third Law, the forces are equal in (blank) and but opposite in (blank).
direction, magnitude
mass, time
mass, weight
magnitude, direction
15
A car weighing 2500kg exerts a force of 5000N to stop. What is the accel. of the car?
-2500 m/s2
-2 m/s
5 m/s2
-2 m/s2
16
What does the force of gravity (fg) equal?
g2 (gravity)
mass times gravity (mg)
-9.8 m/s2
17
What are the two types of friction?
Active and Moving
Static and Active
Kinetic and Static
Kinetic and Active
18
The Earth and Moon each pull on one another, which pull is stronger, or are they the same?
Same
Moon on Earth
Earth on Moon
19
If an object is in free fall, where does the friction go?
Down
Up
Right
Left
20
This picture shows balanced forces.
True
False
