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Forces
Labs
Simple Machines 1
Simple Machines 2
Simple Machines 3
100
Scientist, mathematician and astronomer who developed the 3 Laws of Motion.
Who is Sir Isaac Newton.
100
When two students were playing tug-of-war, if they did not move, it was because the force they exerted was ________
Balanced.
100
When using a Pulley, the effort required to lift an object is reduced, but what is the tradeoff? The rope will have to be pulled a greater ___________.
Distance
100
Using a lever helps to make work ______
easier
100
What simple machine is a ladder?
Inclined plane
200
The energy required to move an object or change its direction.
What is force.
200
When two students play tug-of-war, and one is pulled across the line, it is because the forces are ____________.
Unbalanced.
200
When using a Inclined Plane, less force is required to move an object, but you will have to move it a greater _________________.
Distance
200
A large rock and a long, thick board could be used to construct which simple machine? A) Screw B) Pulley C) Fulcrum D) Lever
D
200
What simple machine on a boat would lift a sail?
A pulley
300
The first law of motion states that a body at rest will do what?
Stay at rest unless acted on by an outside force.
300
You conducted an experiment where you could pull a piece of paper out from under a stack of books without moving the books. Which law of motion was this demonstrating?
First law, an object at rest, stays at rest unless acted upon by an outside force.
300
Another name for an Inclined Plane is a _________
Ramp
300
What simple machine can be used to change the direction of a force?
A Pulley
300
What kind of simple machine is a reel on a fishing pole? The part you move when pulling in a fish?
a wheel and axel
400
The first law also says that a body in motion will do what?
Stay in motion unless acted on by an outside force.
400
You conducted an experiment with a small bucket full of water. When you swung the bucket around, the water did not fall out! Which of Newton's Laws of motion was this demonstrating?
First Law - an object in motion stays in motion unless acted on by an outside force.
400
The whole reason to use a simple machine is to make work easier and use less ________
energy
400
Which simple machines make up a wheelbarrow?
wheel-axle and lever
400
An inclined plane wrapped around a cylinder is called a _______
screw
500
The tendency for an object at rest to remain at rest until a force acts upon the object.
What is Inertia.
500
Which of the Three Laws of Motion was tested when you released a blown up balloon on straw along a string?
For every action there is an equal and opposite reaction. Third law.
500
In order to lift a heavy object with a lever, where is the best place to put the load? A. Closer to the fulcrum B. Further from the fulcrum
A.
500
What 2 simple machines can you find in a shovel?
lever and a wedge
500
A machine that utilizes two or more simple machines is called a _____.
A complex or compound machine