| Force | Motion | Simple Machines | Mass | The Best of Dr. Brain |
|---|---|---|---|---|
100What is force?
A push or a pull
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100What is speed?
The change of position over time.
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100What is a screw?
An inclined plane wrapped around a post
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100What is mass?
The amount of matter in an object
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100What is friction?
During our Ball on a Roll experiment, the ball slowed down and then stopped at some point due to this outside force
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200What is gravity?
A force of attraction between Earth and other objects
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200What is velocity?
The speed and direction of an object.
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200What is a wedge?
This machine is used to move objects apart or split a log
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200What is False?
True or false? The heavier the object, the less amount of force is needed to move the object
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200What is Newton's First Law of Motion?
An object at rest tends to stay at rest, & an object in motion tends to stay in motion unless acted upon by an outside force
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300What is false?
True or False? The greater the force, the slower the speed.
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300What is True?
True or False? The lighter the object, the further the object will travel.
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300What is a pulley?
This simple machine is made up of a grooved wheel with a rope around it used to change direction
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300What is weight?
The force of gravitation that pulls on an object
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300What is Newton's Third Law of Motion?
Every action has an equal and opposite reaction
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400What is True?
True or False? Gravitational force pulls objects toward the Earth.
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400What is Motion?
Any movement or change in position
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400What is an inclined plane?
This simple machine makes it easier to slide to push a load upward
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400What is False?
True or False? Weight and mass are the same thing
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400What are force and mass?
Newton's Second Law says that an object's acceleration depends on two things
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500What is Friction?
A force that resists motions of objects that are touching.
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500What is decrease?
The speed of an object will increase or decrease when a greater force than the initial one is applied
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500What is a wheel & axle?
A bar on which a round frame turns
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500What is a larger indentation will appear for the 5lb weight and a smaller indentation for the 1lb
If I drop a 1 lb weight and a 5 lb weight from the same distance at the same time into a pile of sand this will happen
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500What are the lever and the fulcrum
This simple machine is a bar that pivots on a fixed point. Name the simple machine and what the fixed point is called
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