Inertia is what causes a roller coaster car to move very slowly at first and to resist slowing down later in the ride. Velocity is the speed of an object moving in a certain direction, and the velocity of a roller coaster car changes as the track changes direction. Weightlessness is the feeling riders get because of gravity and velocity acting on them at the same time.
What is the meaning of the word inertia in this passage?
The Physics of Scream Machines
Responses
a force that causes an object to move in a certain direction
a force that causes an object to move in a certain direction
a force that keeps an object's motion the same
a force that keeps an object's motion the same
a force that keeps gravity and velocity working together
a force that keeps gravity and velocity working together
a force that causes things to slow down with friction
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The meaning of the word "inertia" in the passage is best described by:
a force that keeps an object's motion the same.
Inertia refers to the property of an object that resists changes to its state of motion, meaning an object at rest stays at rest and an object in motion continues moving at a constant velocity unless acted upon by an external force.
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