Newtons Laws Of Motion Question Preview (ID: 16780)
Questions Are Based On Texas 8th Grade Science Objectives.
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Which of the following statements is true about Newton's explaination of inertia?
a) An object with mass will continue to move without the effects of unbalanced forces.
b) An object with mass will remain at rest unless acted upon by a balanced force.
c) An object with mass will move with constant speed in the absence of friction.
d) An object with mass will move with constant speed in the presence of friction.
Newton's Third Law of motion states that every force is accompanied by an equal and opposite force. Which of the following statements best illustrates this principle.?
a) A basketball bouncing on the floor.
b) A pencil falling off a table.
c) A car accelerating as it rolls down a hill.
d) A book sliding off the car seat when the car suddenly stops.
The tendency of a stationary object to resist being put into motion is know as ________________.
a) Acceleration
b) Velocity
c) Weight
d) Inertia
Samuel kicks a soccer ball across a grassy field and it eventually comes to a stop. If Newton's law of inertia is true, why did the ball stop?
a) Newton's law only applies to objects at rest.
b) Gravity slowed the ball until it came to a stop.
c) Friction with the grass applies a net force on the ball causing it to decrease its speed.
d) The mass of the ball is not great enough to have inertia.
Once in orbit, the space shuttle used very little, if any, rocket power to maintain its speed despite traveling over 15,000mph! How were NASA engineers able to do this?
a) The space shuttle is very massive and must burn its rockets at full power to achieve this speed.
b) Gravity provides the necessary force to keep the space shuttle traveling at a high rate of speed.
c) Speed generated from the force of the rockets is kept through flight since there is no air friction.
d) The space shuttle was able to use a special coating in order to achieve its fast speed in space.
In the case of a car crash, the body's inertia will continue to carry it in its initial direction. However, if the person is wearing a seat belt, in which direction will force go?
a) To the right.
b) To the left
c) Forwards
d) Backwards
A tennis ball being dropped, then bouncing upward after hitting the ground is an example of.....
a) The law of inertia.
b) The law of force and acceleration.
c) The law of action-reaction.
d) The law of reflection.
An 18-wheeler truck takes a long time to increase its speed after a stop light turns green is an example of....
a) The law of inertia.
b) The law of force and acceleration.
c) The law of action-reaction.
d) The law of reflection.
A student sitting in their seat is an example of....
a) The law of inertia.
b) The law of force and acceleration.
c) The law of action-reaction
d) The law of reflection.
Josh Hamilton crushed a homerun over the center field wall. The ball is struck with a force of 20N. How much force does the ball apply to the bat?
a) 5N
b) 10N
c) 20N
d) 40N
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