Mrs. Laubscher. 1. Inertia 2. Unbalanced 3. Gravitational 4. Net.
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Transcript of Mrs. Laubscher. 1. Inertia 2. Unbalanced 3. Gravitational 4. Net.
MOTION & FORCES
Mrs. Laubscher
THE OVERALL FORCE ON AN OBJECT AFTER ALL THE FORCES ARE ADDED TOGETHER IS CALLED THE ____________________ FORCE.
Inerti
a
Unbalance
d
Grav
itational
Net
25% 25%25%25%1. Inertia2. Unbalanced3. Gravitational4. Net
WHICH ONE OF THE FOLLOWING CANNOT BE TRUE FOR A CAR THAT IS ACCELERATING?
It is
moving w
ith in
creas..
.
It is
moving w
ith a
faste...
It has a
high co
nstant v
e...
It is
changin
g dire
ction
25% 25%25%25%
1. It is moving with increasing speed
2. It is moving with a faster speed than it was before
3. It has a high constant velocity
4. It is changing direction
AS AN OBJECT FALLS FREELY, ITS
Speed in
crease
s
Acceleration in
creas
es
Both in
crease
None of t
hese
25% 25%25%25%1. Speed increases2. Acceleration
increases3. Both increase4. None of these
THE GRAVITATIONAL PULL IS GREATER BETWEEN TWO OBJECTS THAT
25% 25%25%25%1. Have rougher surfaces
2. Are farther apart3. Have greater
masses4. Are moving at a
greater speed.
MASS IS . . .
Diff
erent o
n the m
oon t...
A measu
re of g
ravit
ation..
Measu
red in newto
ns
A measu
re of t
he amoun...
25% 25%25%25%1. Different on the moon than on Earth
2. A measure of gravitational force
3. Measured in newtons4. A measure of the
amount of matter
WHEN A MOVER PUTS FURNITURE ON A DOLLY WITH WHEELS, WHICH TYPE OF FRICTION IS THE MOVER USING TO MAKE HIS JOB EASIER?
Rolling f
riction
Static f
riction
Sliding fr
iction
Fluid fr
iction
25% 25%25%25%1. Rolling friction2. Static friction3. Sliding friction4. Fluid friction
THE AVERAGE SPEED OF A HORSE WHICH GALLOPS 10 KILOMETERS IN 30 MINUTES IS
3 km/hr
6 km/hr
10 km/h
r
20 km/h
r
25% 25%25%25%1. 3 km/hr2. 6 km/hr3. 10 km/hr4. 20 km/hr
TEN SECONDS AFTER STARTING FROM REST A FREE FALLING OBJECT WILL HAVE A SPEED OF ABOUT . . .
10 m/s
50 m/s
100 m/s
More
than 150 m
/s
25% 25%25%25%1. 10 m/s2. 50 m/s3. 100 m/s4. More than 150 m/s
WHAT IS THE NET FORCE AN OBJECT WILL HAVE WHEN YOU COMBINE A FORCE OF 14 N NORTH WITH A FORCE OF 6 N SOUTH?
8 N N
orth
20 N So
uth
20 N N
orth
8 N So
uth
25% 25%25%25%1. 8 N North2. 20 N South3. 20 N North4. 8 N South
MARS IS LESS MASSIVE THAN EARTH. IF YOU COULD TRAVEL TO MARS WHICH WOULD BE TRUE?
Your mass
would go do..
Your weight w
ould go ...
Both your m
ass and w
ei...
Your weight w
ould go u...
25% 25%25%25%1. Your mass would go down but your weight would stay the same.
2. Your weight would go down but your mass would stay the same.
3. Both your mass and weight would change.
4. Your weight would go up but your mass would stay the same.
TO STOP THE MOTION OF A BASEBALL, YOU MUST APPLY ___ TO THE BALL
An unbalanced fo
rce In
ertia
A balance
d force
A zero
net force
25% 25%25%25%1. An unbalanced force2. Inertia3. A balanced force4. A zero net force
IF A IS A DISTANCE TIME GRAPH, WHAT IS THE CAR DOING?
Going at a
consta
nt speed
Accelerating at
a const.
..
Not m
oving
Dece
lerating
25% 25%25%25%1. Going at a constant speed2. Accelerating at a constant
speed3. Not moving4. Decelerating
IF D IS A VELOCITY VS. TIME GRAPH, WHAT IS THE CAR DOING?
Going at a
consta
nt speed
Grad
ually acc
elerating
Grad
ually dece
lerating
Going at a
consta
nt acce
...
25% 25%25%25%
1. Going at a constant speed
2. Gradually accelerating3. Gradually decelerating4. Going at a constant
acceleration
IF E IS A DISTANCE VS. TIME GRAPH WHAT IS THE CAR DOING?
Going fr
om far a
way to ...
Dece
lerating
Going back
wards
Accelerating to
wards t
he...
25% 25%25%25%1. Going from far away to
closer to home2. Decelerating3. Going backwards4. Accelerating towards
the start
WHICH OF THE FOLLOWING MOVING AT THE SAME SPEED, WOULD HAVE THE LEAST MOMENTUM?
A spider
A frog
A cat
A bear
25% 25%25%25%
1. A spider2. A frog3. A cat4. A bear
IF THERE IS NO FRICTION, WHEN TWO OBJECTS OF THE SAME MASS COLLIDE AND DO NOT STICK TOGETHER THE OBJECTS ____ VELOCITIES
Add
Subtra
ct
Multi
ply
Divi
de
Average
Switc
h
17% 17% 17%17%17%17%1. Add2. Subtract3. Multiply4. Divide5. Average6. Switch
TO INCREASE ACCELERATION OF AN OBJECT YOU CAN
Incre
ase th
e force
and i...
Decre
ase th
e force
and ...
Incre
ase th
e force
and i...
Incre
ase th
e force
and d...
25% 25%25%25%1. Increase the force and increase the mass
2. Decrease the force and decrease the speed
3. Increase the force and increase the speed
4. Increase the force and decrease the mass
WHICH OF THE FOLLOWING IS UNTRUE ABOUT INERTIA?
It’s a
lso N
ewton’s
first la
w
It is
cause
d by applying..
.
It is
a resis
tance
to m
otion
It sa
ys that a
n object in...
25% 25%25%25%1. It’s also Newton’s first law
2. It is caused by applying an unbalanced non-zero net force.
3. It is a resistance to motion
4. It says that an object in motion tends to stay in motion at a constant velocity
IF EARTH’S GRAVITY DISAPPEARED, OUR MOON WOULD
Continue to orb
it the Earth
Orb
it the su
n
Fly o
ff in a
straigh
t line
Crash
into
Earth
25% 25%25%25%1. Continue to orbit the
Earth2. Orbit the sun3. Fly off in a straight line4. Crash into Earth
THE FORCE THAT CAUSES AN OBJECT TO MOVE IN A CIRCLE IS
Centripetal fo
rce
Centrifu
gal fo
rce
Terminal v
elocity
Free fa
ll
25% 25%25%25%1. Centripetal force2. Centrifugal force3. Terminal velocity4. Free fall
THE FORMULA FOR ____ IS MASS X VELOCITY.
Acceleration
Momentu
m Fo
rce
Speed
25% 25%25%25%1. Acceleration2. Momentum3. Force4. Speed
WHEN TWO OBJECTS COLLIDE AND STICK TOGETHER, TO FIND THE VELOCITY OF BOTH YOU NEED TO CONSIDER ALL OF THE FOLLOWING EXCEPT?
Law of c
onserv
ation of...
The amount of m
ass of ..
.
The total
amount of m
...
The force
of how hard
th...
25% 25%25%25%1. Law of conservation of momentum
2. The amount of mass of both objects added together
3. The total amount of momentum
4. The force of how hard the first object hit the second object
THE REASON THAT A BOWLING BALL CAN HIT DOWN MORE PINS THAN A TENNIS BALL IS . . .
You can th
row th
e tenni...
Newto
n’s Fir
st La
w
Newto
n’s Seco
nd Law
Newto
n’s Third
Law
The Law of C
onserv
ation...
Centripetal F
orce
The Law of U
niversal G
ra...
14% 14% 14% 14%14%14%14%1. You can throw the tennis ball faster.
2. Newton’s First Law3. Newton’s Second Law4. Newton’s Third Law5. The Law of Conservation of
Momentum6. Centripetal Force7. The Law of Universal
Gravitation
WHEN YOU PADDLE A CANOE, THE CANOE GOES FORWARD BECAUSE OF . . .
Paddling c
reate
s a bala.
..
Newto
n’s Fir
st La
w
Newto
n’s Seco
nd Law
Newto
n’s Third
Law
The Law of C
onserv
ation...
Centripetal F
orce
The Law of U
niversal G
ra...
14% 14% 14% 14%14%14%14%
1. Paddling creates a balanced force
2. Newton’s First Law3. Newton’s Second Law4. Newton’s Third Law5. The Law of Conservation of
Momentum6. Centripetal Force7. The Law of Universal
Gravitation
THE REASON WHY EARTH ORBITS THE SUN IS
Newto
n’s Fir
st La
w
Newto
n’s Seco
nd Law
Newto
n’s Third
Law
The Law of C
onserv
ation...
Centripetal F
orce
Earth
has a lo
t of g
ravit
y
17% 17% 17%17%17%17%1. Newton’s First Law2. Newton’s Second Law 3. Newton’s Third Law4. The Law of Conservation of
Momentum5. Centripetal Force6. Earth has a lot of gravity
THE REASONS WHY YOU NEED TO WEAR A SEATBELT IS . . .
Law of U
niversal G
ravit..
.
Newto
n’s Fir
st La
w
F = m
x a
F = m
/a
Newto
n’s Third
Law
Law of C
onserva
tion of...
Elasti
c & in
elastic c
ollisions
14% 14% 14% 14%14%14%14%1. Law of Universal
Gravitation2. Newton’s First Law3. F = m x a4. F = m/a5. Newton’s Third Law6. Law of Conservation of
Momentum7. Elastic & inelastic
collisions
THE REASON WHY WE REACH TERMINAL VELOCITY WHEN FALLING IS BECAUSE OF
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r answ
er text.
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100%1. Enter answer text...