stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Physics final Flashcards | StudBud
Explore
/
Physics final
horizontal velocity...
what is the equation for potential energy?
Physics final
66 terms
·
StudBud Administration
·
5 plays
why is wignall so weird
Flashcards
66 cards
F
Practice quiz
P
Host live
L
Questions
66
Answers
1
what is the equation for potential energy?
Ep = mgh
Ep = (mg) + h
2
horizontal velocity...
is constant
changes over time
3
what is rate
a simple conversion
how something changes overtime
scale for measuring quality
4
give an example of kinetic friction
air resistance
bowling ball
hockey puck
initial friction that opposes movement
5
what is the net force equation
Fapplied +Ff = Fnet
Fapplied - Ff = Fnet
6
what is the force net equation when a box is being pushed at an angle?
mgsinθ - (π x mgcosθ)= ma
mgsinθ + (π x mgcosθ)= ma
gsinθ - (π x gcosθ)= a
7
what is newtons third law
for every action there is an equal and opposite reaction
law of inertia
law of friction
law of gravity
8
at what angle is maximum range achieved?
65°
35°
20°
45°
9
which equation should you use if you are trying to find velocity but do not know time?
vf= vi + at
vf2= vi2 + 2aΔd
df= di + vit +at2
10
what is the acceleration caused by gravity?
4.9 m/s2
9.8 m/s2
9.8 m/s
4.9 m/s
11
Physics is the study of...
matter
atomic structure
motion and energy
projectile motion
12
what is potential energy?
a race car moving on a flat surface
a ball held above the ground
a ball at rest on the ground
13
What is an example of scaler quantity?
12 m/s2
14 m/s
500 kilograms
14
give an example of rolling friction
hockey puck
initial friction that opposes movement
air resistance
bowling bowl
15
what is velocity
vector quantity
scaler quantity
16
what does a high coefficient of friction demonstrate
low friction
high friction
it has no effect
17
what is a reference frame
for far away the obeject is from the observer
where is this system being observed
how long it takes to finish an experiment
18
what is the law of conservation of energy?
only wizards can create energy
energy can be created but not destroyed
energy can be destroyed but not created
energy can be neither created nor destroyed
19
if energy is converted from kinetic to potential does the total energy increase or decrease?
decrease
remains the same
increase
20
does mass effect inertia?
yes, more mass decreases inertia
no, it is irrelevant
yes, more mass increases inertia
21
what is work
a job
transfer in energy results by applying force over a distance
amount of force put on an object
22
Which of the following sets of metric prefixes is ordered smallest to largest?
nano, centi, milli, kilo
micro, centi, mega, giga
kilo, micro, giga, tera
tera, giga, centi, micro
23
what is the equation for total energy?
Total energy = Ek + Ep
Total energy = Ek - Ep
24
What is distance
how far something traveled
how fast something traveled
25
velocity
the rate of change in distance (m/s)
how quick something speeds up (m/s2)
26
how many types of friction are there?
3
6
5
4
27
what is the equation for power?
P= (F x d)/t
P= W/t
P= W x t
28
what is the equation for kinetic energy?
Ek = (1/2)mv2
Ek = 2 x mv2
29
what is the distance formula?
df= di + vit +at2
vf2= vi2 + 2aΔd
vf= vi + at
30
Pushe 10kg box angle15° above horizontal with force 200N.The magnitude of the applied force is?
200cos15
200
10
98
31
What is speed
vector quantity
scaler quantity
32
A triangle is shown to the right. All of the following equations are true except...
sinθ= (a/b)
cos-1 (b/c)=θ
tan-1 (a/b)=θ
Csinθ=a
33
What would be the correct way to convert 3.45 microseconds to seconds in scientific notation?
3.45 x 106
3.45 x 10-9
3.45 x 10-3
3.45 x 10-6 seconds
34
can an object have both potential and kinetic energy?
no
yes
35
when a ball is thrown at the same velocity, at complimentary angles...
the ball will fly further at the greater angle
the ball will fly the same distance
the ball will fly further at the smaller angle
36
what unit is work measured in?
joules
energy
meters
37
what causes friction
microwelds
wignall
38
what is energy?
degree at which you push something
change in distance
the ability to change or cause change
39
the middle of the trajectory is called the...
peak
center
parabola
40
what is displacement
distance from the starting point to the end point
the height in which something moves
41
what is newtons second law
law of inertia
law of mass
m=fa
f=ma
42
give an example of fluid friction
bowling bowl
hockey puck
initial friction opposes movement
air resistance
43
what is acceleration
the amount of time that passes during during an experiment
The rate of change in velocity (m/s2)
44
what is the unit of measurement for energy?
seconds
liters
meters
joules
45
what is the force of friction equation?
Ff = π x Fnormal force
Ff =π/Fnormal force
46
what is newtons first law
f=ma
law of velocity
law of friction
law of inertia
47
Use a ruler that measure to the tenth of centimeter which lengths has been estimated correctly?
12.31 cm
12.3 cm
12.310 cm
12 cm
48
which equation should you use if you are trying to find velocity without knowing distance?
df= di + vit +at2
vf= vi + at
vf2= vi2 + 2aΔd
49
how many laws does newton have
6
2
3
50
how many types of energy are there?
4
3
2
1
51
is energy need for change to occur?
yes
no
52
what is kinetic energy?
a bike moving on a flat surface
a book resting on a table
53
which of the following conversions is incorrect?
0.01 liters= cL
0.001kg=1 mg
1,000 grams= 1 kg
0.001 m=1 mm
54
what unit is power measured with?
watts
lbs
joules
mass
55
what is the equation for work
W = Fd
W = Fma
W = F/d
56
what is the equation for work applied at an angle
W = Fdtanθ
W = Fdcosθ
W = Fdsinθ
57
give an example of static friction
hockey puck
bowling bowl
air resistance
initial friction that opposes movement
58
what is a parabola
distance something travels
the trajectory of a projectile in free fall
59
Which of the following statements is false?
100 meters< 100,000 cm
100 kilograms< 10,000 grams
1,000,000 milliliters= 1 liter
1,000 centimeters> 1 meter
60
what is normal force?
total force
weight of the object
force applied
61
what is power
the rate at which work is done
how much force is applied to an object
62
what is trajectory
prediction of where something will land
the path of the projectile
63
In what circumstance is no work done?
continuously changing amount of energy
if there is no change in kinetic and potential energy
64
what is the law of inertia
object at rest stay at rest unless an unblanced force acts
obeject in motion stay in motion unless unblanced force acts
velocity is important
65
which of the following is an example of vector quantity?
volume
mass
Velocity
temperature
66
Which of the following equations is correct?
b=√(c2-a2)
b=a2-c2
b=√(a2-c2)
b=√(a2-c2)
