An object moving some distance due to a force is called ________________
What is Work
100
Allen pushes hard against a heavy box until he is exhausted. What is the reason science says that he has done no work?
A) No energy has been used.
B) The box has not moved.
C) There has been no force applied.
D) The force on the box is too small.
B
100
When using a Pulley, the effort in N 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
When work is being done and something is moving, this is also known as a type of _____________
What is Energy
200
A teacher pushes a pile of papers across the top of a desk. All of the following support the fact that work was done on the papers EXCEPT that _____.
A) a force was applied
B) the papers moved a distance
C) energy was transferred to the papers
D) the desk did not move
D
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
What two factors are required for work to be done?
What is Force and Movement
300
What is the tool used to measure Force of an object?
A spring scale
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
If there is no movement, is work being done?
No
400
The unit used to measure force is called ______
newtons
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
If you are hammering something, which object is doing work on the nail?
The hammer
500
All of the following are ways that simple machines make work easier EXCEPT _____.
A) changing the direction in which the force is exerted
B) decreasing the amount of force that is exerted
C) decreasing the amount of work that is done
D) changing the distance over which a force is exerted
C
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 _____.