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WorksheetsCHAPTER 3 EXAM REVIEW
Total questions: 44
Worksheet time: 22mins
A push or a pull on an object
FORCE
MOTION
INERTIA
GRAVITY
SI UNIT OF FORCE
METERS
INCHES
KILOGRAMS
NEWTONS
BALANCED FORCE IS...
FORCES THAT BALANCE OUT ON A BEAM
EQUAL FORCE
0 MOVEMENT
MORE MOVEMENT 0 FORCE
UNBALANCED FORCE IS...
ONE FORCE IS LESS THAN THE OTHER AND IS IN THE OPPOSING SIDE OF FORCE
One force is greater than the other
Movement in the direction of the greater force
ALL FORCES THAT AREN'T 9.8m/s2
NET FORCE IS...
ONE FORCE AND ITS OPPOSITE ADDED TOGETHER
NEWTONS ARE MEASURED KGxM/S2
Overall forces added together
FORCE CAN CHANGE
Motion
Size
Shape
ALL OF THE ABOVE
GRAVITY IS A?
Constant
Fitful
Always Changing
Gravitational Acceleration
8.7m/s2
6.7m/s2
9.8m/s2
Falling object doesn’t fall fast….it
continually falls faster
TRUE
FALSE
Velocity decreases 9.8 meters per
second every second
True
False
Gravity is an Attractive Force between two objects.
True
False
Objects at rest remain at rest, objects in motion
remain in motion unless acted upon by an
unbalanced force.
1ST LAW
2ND LAW
3RD LAW
NEWTONS 1ST LAW OF MOTION IS KNOWN AS THE LAW OF?
Gravity
Movement
Inertia
Inertia is?
Objects at rest remain at rest, objects in motion
remain in motion unless acted upon by an
unbalanced force.
Tendency of an object to resist any change of
motion.
unbalanced force acting upon an object.
Amount of Inertia depends on...
Gravity
Mass
Velocity
2nd LAW EQUATION F = a x m
True
False
2nd LAW is
an object in motion stays in motion
for every action their is an equal but opposite reaction
An unbalanced force acting on an object
causes the object to accelerate in the direction
of the force
2nd LAW CRUTCH DONT FORGET THIS!
2nd LAW CRUTCH DONT FORGET THIS!
How much force is needed to accelerate a
motorcycle and rider with a combined mass of
270 kg at 4 m/s2?
1000N
1180N
20N
1080N
It takes a force of 3000N to accelerate an empty
1000 kg car at 3 m/s2. if a 160 kg pro wrestler is
put into the car, how much force will be needed
to produce the same acceleration?
1160N
2010N
3480N
A 63 kg figure skater pushes off from the boards
with a force of 300 N, what is the skaters
acceleration?
4.8m/s2
6.4m/s2
11.2m/s2
WHAT IS THIS CRUTCH?
Momentum
Velocity
Force
What is the momentum of a 20 kg dog
running at a speed of 8 m/s?
160 kg x m/s
200 kg x m/s
50 kg x m/s
180 kg x m/s
What is the momentum of a 2 kg toy truck that
moves at 10 m/s?
20 kg x m/s
10 kg x m/s
200 kg x m/s
2000 kg x m/s
Which of the 2 trucks in questions
9 & 10 has more momentum?
Why? 2 kg truck or 2000 kg truck?
2000 kg truck has more momentum because more mass.
2 kg truck because it is lighter and faster.
both are same.
what crutch is this?
force
weight
free fall
On Earth, what is the weight of a large
fish aquarium
that has a mass of 150 kg?
1480N
1400N
1470N
TERMINAL VELOCITY
The maximum velocity an object can fall
towards Earth
Gravity (down) = Air resistance (up)
Both
Escape Velocity
Velocity an object has on a certain strike of an object.
Newtons First Law
Newtons Second Law
velocity that a body must have in order to
escape the gravity of a planet
FRICTION
A force collides with another object
A force that speeds up with the object
Force that opposes motion of two surfaces
What are the four types of frictions?
Rollings,Swimming,Breaking,Gliding
Running,Stopping, Chewing, Sleeping
Static
Sliding
Rolling
Fluid
newtons third law states
An unbalanced force acting on an object
causes the object to accelerate in the direction
of the force
Objects at rest remain at rest, objects in motion
remain in motion unless acted upon by an
unbalanced force.
For every action there’s an equal and opposite reaction
mass (m) of an object multiplied by its velocity (v)
Momentum
Velocity
Mass
Doesn’t change unless it’s mass, velocity or
both change, and it can be transferred.
LAW OF CONSERVATION
OF
MOMENTUM
NEWTONS FIRST LAW
NEWTONS SECOND LAW
NEWTONS THIRD LAW
You trip on the sidewalk and fall forward
1st Law
2nd Law
3rd Law
A baseball travels farther and faster than a softball if struck with the same force
1st Law
2nd Law
3rd Law
For every action force there is a reaction force that is equal in size and opposite in direction.
1st law
2nd law
3rd law
Explains the lifting of a rocket into space
1st law
2nd law
3rd law
hitting a tennis ball causes it to go in the direction of the swing
1st law
2nd law
3rd law
Jumping on a trampoline causes you to fly in the air
1st law
2nd law
3rd law
An object at rest or in motion tends to remain at rest or in motion unless acted upon by an outside force.
1st law
2nd law
3rd law
it takes more force to accelerate a golf ball than a ping pong ball.
1st law
2nd law
3rd law
explains why seatbelts should be used in automobiles
1st law
2nd law
3rd law
a net force acting on an object causes the object to accelerate in the direction of the net force.
1st law
2nd law
3rd law
