Motion & Forces
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is used for comparison to determine if something is in motion? | reference point
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| What is speed in a given direction? | velocity
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| What is the distance an object travels in one unit of time? | speed
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| What occurs when something's reference point is changing? | motion
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| What occurs when the velocity of an object changes? | acceleration
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| A push or a pull is a _______ | force
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| What is the force that accelerates objects towards earth? | gravity
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| A measure of force of gravity on an object is _______ | weight
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| What is the tendency of an object to resist a change in motion? | inertia
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| What is the product of an object's mass and velocity? ( Mass x Velocity ) | momentum
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| What is the general term for the force that one object exerts on another when they rub against each other? | friction
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| _______ forces can change an object's motion. | unbalanced
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| _______ friction is the kind of friction that slows a falling object. | fluid friction
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| The amount of inertia an object has depends on its ________. | mass
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| A falling object reaches ________ when forces of gravity and air resistance are balanced. | terminal velocity
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| If you increase the mass of an object, its acceleration ________. | decreases
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| A child riding a merry-go-round is accelerating because his direction is _______. | changing
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| Friction depends on the types of surfaces involved and how _______ the surfaces push together. | hard
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| _______ friction is the friction that acts on objects that are not moving. | static
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| _______ friction is when two solid surfaces slide over each other. | sliding
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| _______ friction is when an object rolls across another surface. | rolling
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| _______ is when the only force acting on an object is gravity. | free fall
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| States that an object at rest will remain at rest, and an object moving at a constant velocity will continue moving at a constant velocity, unless it is acted upon by an unbalanced force. | Newton's first law of motion
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| States that acceleration depends on the object's mass and on the net force acting on the object. | Newton's second law of motion
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| States if one object exerts a force on another object, the second object exerts a force of equal strength in the opposite direction on the first object. | Newton's third law of motion.
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| The Law of ______ of ______ is the total momentum of any group of objects remains the same , or is conserved, unless outside forces act on the object. | conservation of momentum
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| What is the force that causes an object to move in a circular path? | centripetal force
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
redskinsman3
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