Motion And Force Review Question Preview (ID: 12406)
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A fox is traveling at a velocity of 2.7 m/s. 3.5 seconds later it is traveling at a velocity of 4.8 m/s. What is the acceleration of the fox?
a) 0.6 m/s/s
b) 0.75 m/s/s
c) 0.9 m/s/s
d) 1.75 m/s/s
Which statement best describes the difference between acceleration and deceleration?
a) Acceleration is measured in m/s/s while deceleration is not.
b) Acceleration takes position into account while deceleration does not
c) Deceleration does not required an initial velocity and final velocity to calculate.
d) Deceleration usually refers to an object that is slowing down, while acceleration may not.
Which of the following has the greatest inertia?
a) 10 kg textbook
b) 20 kg cat
c) 40 kg dog
d) 20 kg cat running with a velocity of 4 m/s
Unlike inertia, momentum
a) depends on position
b) can never equal zero
c) depends on velocity as well as mass
d) depends on the acceleration of an object
Which best shows Newton's first law?
a) momentum= mass X velocity
b) Friction acts on objects in motion and at rest
c) A lamp continues to sit at rest on a table if there is no net force on it
d) When you push on a wall, the wall pushes back on you with an equal and opposite force
Momentum is best defined as
a) mass divided by velocity
b) velocity divided by mass
c) mass multipled by velocity
d) final velocity minue inital velocity divided by change in time
A 0.25 kg ball is rolled across the floor with a velocity of 3.5 m/s. What is the ball's momentum?
a) 14 kg(m/s)
b) 0.875 kg (m/s)
c) 0.071 kg (m/s)
d) 1.650 kg (m/s)
A car is traveling with a velocity of 35.4 m/s. The mass of the car is 2000 kg. What is the momentum of the car?
a) 56.6 kg (m/s)
b) 65.5 kg (m/s)
c) 70,800 kg (m/s)
d) 78,000 kg (m/s)
A baseball is thrown with a velocity of 40 m/s. What is the baseball's momentum?
a) 3.8 kg (m/s)
b) 4.0 kg (m/s)
c) 5.2 kg (m/s)
d) 5.8 kg (m/s)
A force is best defined as:
a) a push or a pull
b) gravity or friction
c) something that is exerted
d) change in velocity over change in time
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