Force And Motion Question Preview (ID: 7948)
Review Questions About Force And Motion.
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A force can best be 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
Which of the following is an example of a net force?
a) A 10 kg box of books has intertia
b) A car travels at a constant velocity of 10 m/s
c) Friction pushes against an object, slowing it down.
d) A car in motion will tend to stay in motion, while a car at rest will tend to stay at rest.
Which of the following is not a possible effect of a force?
a) Increasing the inertia of an object.
b) Causing a stationary object to begin to move.
c) Changing the direction of an object in motion.
d) Changing the speed of an object already in motion.
In which situation does the motion of an animal show that a net force is acting on that animal?
a) An eagle remains flying at a constant velocity.
b) A running tiger increases its speed from 4 m/s to 6 m/s.
c) A sparrow remains stationary perched on a power line.
d) At 0s, a snake slithers forward with a velocity of 2 m/s. 5 s later the snake's velocity is 2 m/s.
Which of the following statements bests states Newton's second law?
a) The net force of an object will equal the mass of the object multiplied by its velocity.
b) The net force of an object will equal the mass of the object multiplied by its acceleration.
c) Any one force that acts on an object will equal the mass of the object multiplied by its velocity.
d) Any one force that acts on an object will equal the mass of the object multiplied by its acceleratio
Choose the best ending. If an object is traveling with a constant velocity...
a) There are no forces on the object.
b) There is no net force on the object.
c) There are no forces parallel to the direction of motion.
d) There are only forces parallel to the direction of motion.
You see an object accelerate towards the left. Which of the following statements is correct?
a) There is a net force on the object upwards.
b) There is a net force on the object to the left.
c) There is a net force on the object to the right.
d) There is a net force on the object downwards.
What is the net force on a car if the force of friction is 15 N and the forward force due to the engine is 20 N?
a) 5 N backwards
b) 5 N forwards
c) 33 N backwards
d) 33 N forwards
A force can best be defined as:
a) a push or pull
b) gravity or friction
c) something that is exerted
d) change in velocity over change in time.
Which of the following is not a possible effect of a force?
a) Increasing the inertia of an object.
b) Causing a stationary object to begin to move.
c) Changing the direction on an object in motion.
d) Changing the speed of an object already in motion.
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