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WorksheetsMechanical Advantage - Test
Total questions: 69
Worksheet time: 1hrs 25mins
A wheel and axle is a __________machine.
hard
simple
fixed
what is an example of a wheel and axle?
doorknob
TV
refrigerator
what are the TWO parts to a wheel and axle?
walker
wheel
area
axle
an axle is a_____ and connects to a______
screw
rod
driver
wheel
What causes wheels to move?
touching the wheel
spinning a axle
looking at an axle
The ______is considered one of the most important inventions in history.
axle
car
wheel
house
What are some examples of wheels and axles? select all that are correct
Electrical fans
revolving doors
houses
merry-go-rounds
cars
what wheel and axles help prepare FOOD?
eggbeater and pencil sharpener
spoons and forks
rolling pins and eggbeaters
knives and spoons
A wheel is...
A circular disc that can turn or roll
Any shape that can turn, like a triangle
A flat shape that hovers
A small, rigid rod that can turn
What is an axle?
The tire that fits around a wheel
The rod around which wheels rotate
A type of inclined plane
The rope that is strung through a pulley
In a doorknob, what part functions as a wheel?
The metal rod in the middle
The knob itself
The fulcrum
The keyhole
What is a real life example of a wheel and axle
a tv remote
a bicycle
a shoe
a phone
This picture shows a ________________.
Lever
Wedge
Pulley
Wheel and axle
What is the definition of a wedge simple machine?
A device that is round at one end and tapers to a thin edge at the other end
A device that is flat at one end and tapers to a thick edge at the other end
A device that is thick at one end and tapers to a thin edge at the other end, allowing it to exert a large force over a small distance.
A device that is narrow at one end and tapers to a wider edge at the other end
Can you provide an example of a wedge simple machine?
A bicycle
A spoon
A hammer
A knife
How is the mechanical advantage of a wedge simple machine calculated?
By adding the length of the slope to the thickness of the wedge.
By multiplying the length of the slope by the thickness of the wedge.
By dividing the height of the wedge by the thickness back of the wedge.
By subtracting the length of the slope from the thickness of the wedge.
What is the efficiency of a wedge simple machine?
0%
50%
Depends on the specific design and use of the wedge
100%
What is the purpose of a wedge simple machine?
To cook food evenly
To measure weight accurately
To generate electricity
To split, lift, or hold objects in place
Explain how a wedge simple machine works.
The wedge simple machine works by emitting light to create energy.
The wedge simple machine works by applying force to push two objects apart or lift an object by using a sharp edge or inclined plane.
The wedge simple machine works by rotating objects around a central point.
The wedge simple machine works by pulling two objects together.
What is the advantage of using a wedge simple machine?
To increase the force applied and redirect the force
To decrease the force applied
To change the direction of the force
To increase the distance over which the force is applied
How does a wedge simple machine make work easier?
By reducing the amount of force required
By increasing the amount of force required
By changing the direction of the force
By increasing the distance over which the force is applied
What are the applications of a wedge simple machine?
To cut objects
To measure temperature
To generate sound
To increase speed
ramp
a flat, sloping surface over which objects may be rolled or slid to a higher level
inclined plane
spreads force over a longer distance
wedge
2 inclined planes back-to-back
friction
force that resists motion
screw or bolt
an inclined plane wrapped around a central point or a winding inclined plane
An inlined plane is a (a) that reduces the force required to move an object over a vertical distance or height.
Friction is an important consideration in sliding or rolling an object up a (a) or inclined plane.
The resistance force is in the direction of gravity and the resistance motion is in the (a) direction.
Like the ramp, the (a) spreads the force needed to move the load over a longer distance.
Which of the following is NOT an example of a bolt or screw?
pigtail curve in the mountains
drill bit threads
escalator
wood screw
Which of the following is NOT an example of a wedge?
point of a needle
knife
ax
stairs
Which of the following is NOT an example of a ramp?
nail
stairs
handicap ramp
escalator
inclined plane
remains stationary
wedge
any object with at least 1 slanting side, ending in a sharp edge, which cuts material apart
nail
example of a wedge
ideal mechanical advantage
determined by dividing the length of the inline by the width of the wedge at its thickest point
double wedge
two inclined planes back to back
The wedge is a modification of the (a) .
The sharper the edge of the wedge, the (a) effort force is needed to overcome the resistance.
The zipper used on clothing has a slider that includes an upper triangular wedge for (a) the zipper and two lower (b) that close the teeth of the zipper.
What does IMA stand for?
Ideas Make Advantage
Ideal Money Advantage
Ideal Machine Advantage
Ideal Mechanical Advantage
What does this image represent?
A pulley
A wedge
A lever
A wheel and axle
Pulleys make work:
Easier
Rigorous
How do pulleys make work easier?
they change the direction of a force
they change the amount of force required
the distance over which the force is applied
the measurement of an object
The opposite of input is:
output
force
What is a pulley?
a simple lifting machine consisting of a rope which unwinds from a wheel on to a cylindrical drum or shaft joined to the wheel to provide mechanical advantage.
a rigid bar resting on a pivot, used to help move a heavy or firmly fixed load with one end when pressure is applied to the other.
a wheel with a grooved rim around which a cord passes. It acts to change the direction of a force applied to the cord and is chiefly used (typically in combination) to raise heavy weights.
a piece of wood, metal, or some other material having one thick end and tapering to a thin edge, that is driven between two objects or parts of an object to secure or separate them.
The part of the rope from the pulley to the effort is called an _________ ____________
Force lever
Center Fulcrum
Effort Arm
One of the two kinds of pulleys
Fixed
Moveable
Easy
Groovy
What is the unit used to measure force?
meter
gram
Newton
liter
Which of the following is an example of a pulley?
flag pole
see saw
jump rope
Identify the type of pulley
fixed
moveable
compound (block and tackle)
Identify the type of pulley
Fixed
Moveable
Compound(block and Tackle)
Identify the type of pulley
Block and Tackle(compound)
Fixed
Moveable
A mechanical Advantage is
the factor by which a machine (Pulley) multiplies the force put on it
is of no use and has no advantage to pulleys
What is the ideal mechanical advantage of the following pulley?
1
2
4
6
What is the ideal mechanical advantage of the following pulley?
1
2
4
6
What is the ideal mechanical advantage of the following pulley?
1
3
5
7
What is the minimum amount of force the man will need to exert to lift the pig as pictured?
600
810
900
1000
What would be the minimum force exerted by the man to lift the sheep and the turkey as pictured?
500 Newtons
660 Newtons
700 Newtons
1000 Newtons
What will happen in this simulation?
Nothing
The Jeep will push up the box.
The Jeep will get pushed down by the box.
The Jeep will explode
What will happen in this simulation?
Nothing
The Jeep will push up the box.
The Jeep will get pushed down by the box.
The Jeep will explode
How much force must be applied to lift the weight in the picture?
40 Newtons
25.1 Newtons
70 Newtons
50 Newtons
How much force must be applied to lift the weight in the picture?
13 Newtons
25.1 Newtons
70 Newtons
50.1 Newtons
