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Force and Motion
Review
What is the distance traveled by this
object?
6 + 4 + 3.5 = 13.5 Km
What is the net force acting on the
following object?
• 12 + 8 – 4 = 16 N to the right
Which of the following represents an
inelastic collision?
A
B
• A (inelastic collision: masses are combined)
Which of the following is a scalar?
•
•
•
•
•
A. Velocity
B. Acceleration
C. 42 m/s to the right
D. Speed
E.
D. Speed only give magnitude not direction
What does the following graph
represent?
• Decreasing speed or deceleration
Which Newtonian term is used to
describe the following situation?
• Inertia: Newton’s First Law of Motion
A speedometer gives the driver what
information?
•
•
•
•
A.
B.
C.
D.
Average speed
Instantaneous speed
Average velocity
Overall acceleration
Instantaneous Speed
What is the displacement in the
following illustration?
1 lap = 400 meters
• Zero Displacement: The runner finished where
they started.
What formula could be used to find
the objects displacement?
Which graph would represent the
acceleration due to gravity alone?
• B: Constant Acceleration 9.81 m/s2
Satellites like the ones used for GPS
and our moon are subject to the force
of gravity alone. These objects are
said to be experiencing…
•
•
•
•
A.
B.
C.
D.
Terminal Velocity
Instantaneous Acceleration
Free Fall
Universal Law of Gravitation
Free Fall
What force is represented by the
green arrow?
• Normal Force
Force is labeled in what unit of
measure?
• Newton's (N)
The brown box in the second
diagram is providing what type of
force on the tennis ball?
• Centripetal Force
What (2) forces must be balanced to
keep a satellite in orbit?
• Inertia
• Gravity
Determine the cars average speed.
• Speed = distance / time
• 5 miles / .2 hrs = 25 mph
What type of friction would the following
object most likely experience?
• Rolling Friction
Why is the velocity of the (2)
astronauts less than the velocity of the
(1)?
• Increase in mass.
• Momentum = Mass x Velocity
For an object to accelerate, it must
experience…
•
•
•
•
A.
B.
C.
D.
Balanced forces
Unbalanced forces
Gravity
Terminal Velocity
Unbalanced Forces
A projectile is an object upon which
the only force acting is gravity.
• What is the shape that describes the motion
of a projectile?
Parabolic Motion / parabola
What would happen to an
individuals mass when moving
from planet A to planet B?
• The persons mass would not change. Mass is
the amount of matter in an object.
Which car (red, green, or blue)
experiences the greatest acceleration?
• The blue car has a greater acceleration. It is
changing its velocity at a more drastic rate.
Which two spheres will have the
greatest gravitational pull?
• A
Which color car represents graph B?
• The “Red” car is moving at a constant speed
which is represented by graph B.
What must be eliminated for the
following illustration to work on Earth?
• Air Resistance /
Fluid Friction.
What has the sky diver reached when
the force of gravity equals the force of
air resistance?
• Terminal Velocity
The following illustrations supports
what law.
• Law of Conservation of Momentum
What is the action / reaction pair in
the following illustration?
• (action)Baseball pushes glove to the left.
• (reaction)Glove pushes baseball to the right.
In which direction would friction act
on the following illustration?
• To the west, friction opposes motion.