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An object at rest or moving with a
constant velocity will remain so
until acted upon by an unbalanced
force.
What is Newton’s 1st Law?
Back to you Alex
Sitting in your chair is an example
of which two of Newton’s Laws of
Motion?
What is the 1st and 3rd Laws?
Back to you Alex
When one object exerts a force on a
second object, the second object
exerts an equal and opposite force
on the 1st object.
What is Newton’s 3rd law of motion?
Back to you Alex
If a basketball weighs 12 Newtons,
the amount of force needed to hold
it in your hands is _______.
What is 12 N?
Back to you Alex
The amount of unbalanced force
acting on a dresser that is being
pushed with a force of 100 N while
friction is pushing in the opposite
direction with a force of 90 N is
_________.
What is 10 N in the direction the applied
force?
Back to you Alex
An object’s resistance to changes in
motion is ________.
What is inertia?
Back to you Alex
Of the following, 5000 kg dump
truck, 1000 kg car, 10 kg rock, or
1kg cat, the object with the least
inertia.
What is the 1 kg cat?
Back to you Alex
This is the acceleration of a 7 kg
mass which has had a 68.6 N force
exerted on it. A = f/m
What is 9.8 m/s/s?
Back to you Alex
Friction is caused by this.
What is imperfections in the surfaces of
objects?
Back to you Alex
An astronaut using a jet of nitrogen
to maneuver in space is illustrating
this law of motion.
What is Newton’s third law?
Back to you Alex
Air resistance is known as this type
of friction.
What is fluid friction?
Back to you Alex
This type of friction is responsible
for a car’s tires wearing away,
making them become very smooth,
after 1000s of kilometers.
What is rolling friction?
Back to you Alex
This is the type of friction is the
kind that exists around a pool when
it’s gotten wet.
What is fluid friction?
Back to you Alex
This type of friction must be overcome
to get an object moving.
What is static friction?
Back to you Alex
These are the two types of friction
that oppose the motion of a car.
What is fluid friction and rolling friction?
Back to you Alex
When forces are equal and cancel
each other out, they are_________.
What is balanced?
Back to you Alex
When the amount of force exerted
upward by air resistance equals the
weight of a falling object, the object
stops accelerating. This is known as
_________
What is terminal velocity?
Back to you Alex
The amount of force needed to accelerate
a 100 kg dog at 2 m/s/s is _________.
What is 200 N?
Back to you Alex
When you fall back into your seat
when a plane takes off, this is an
example of ____?
What is inertia?
Back to you Alex
This is the outward force of a surface that opposes
the downward force of an object’s weight is ____.
What is normal force?
Back to you Alex
Force = mass x acceleration. The
law that is explained by this
equation is _______.
What is a Newton’s 2nd Law?
Back to you Alex
When forces are unbalanced on an
object, the object does this.
What is accelerate?
Back to you Alex
Projectile Motion is motion that
occurs in _______directions.
What is two?
Back to you Alex
When objects collide or are pushed
apart like in an explosion,
momentum is _______.
What is the same or conserved?
Back to you Alex
This is how much acceleration a
box will have if it is pushed with a
force of 200 N and has a mass of
100 kg. a = F/m
What is 2 m/s/s?
Back to you Alex
The unbalanced force that keeps the
Earth circling the sun is _____.
What is gravity?
Back to you Alex
When walk the action force is your feet
pushing against the floor. The reaction
force is __________.
What is the floor pushing against your
feet?
Back to you Alex
When all forces are balanced on an
object, the object has a net force of
_________.
What is zero?
Back to you Alex
Which would have more
momentum, a 20 kg dog running at
10 m/s or a 50 kg dog running at 10
m/s? Momentum = mass x velocity
What is it increases?
Back to you Alex
This is the law that explains why
when you step out of a boat onto a
dock, the boat moves away from
you.
What is Newton’s 3rd law?
Back to you Alex