Grade 4 Science Quiz: Pulleys and Gears
Quiz by Arie Rosenberg
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- Q1
Force is:
a machine that produces motion or power for doing work
to move something into or out of a particular position
a push or a pull; a natural power or effect that is able to change the speed or direction of something
an imaginary line around which an object rotates
30s - Q2
A motor is:
a machine that produces motion or power for doing work
a complete turn that is made by something around its centre point or line
energy used to do something or complete work
something, such as a good position or condition, that helps to make someone or something better or more likely to succeed than others
30s - Q3
Torque is:
speed
a complete turn that is made by something around its centre point or line
an axle
a force that causes something to rotate
30s - Q4
A load is:
a force that causes something to rotate
a push or a pull; a natural power or effect that is able to change the speed or direction of something.
the amount of work done or expected to be done
a group of gears working together to accomplish work
30s - Q5
Effort is
a complete turn that is made by something around its centre point or line.
energy used to do something or complete work
something, such as a good position or condition, that helps to make someone or something better or more likely to succeed than others.
30s - Q6
Work is
a lever
a group of gears working together to accomplish work
force applied over a distance
a load
30s - Q7
A gear train is
a group of levers
a load
a train that delivers gears
a group of gears working together to accomplish work
30s - Q8
Axis means
a machine for chopping trees
an imaginary line around which an object rotates
wheel
lever
30s - Q9
Revolution means
wheel
a complete turn that is made by something around its centre point or line
the natural power that is able to change the speed or direction of something
produces power
30s - Q10
Advantage means:
something that makes someone or something less likely to succeed
to increase force
something, such as a good position or condition, that helps to make someone or something better or more likely to succeed than others
to increase speed
30s - Q11
Both pulleys and gears can give you a mechanical advantage.
truefalseTrue or False30s - Q12
There are three types of pulleys: fixed, moveable, and compound.
truefalseTrue or False30s - Q13
Fixed pulleys give you a mechanical advantage while moveable pulleys can only change the direction of a force.
falsetrueTrue or False30s - Q14
You can calculate the mechanical advantage of a pulley system by measuring the amount of rope used.
falsetrueTrue or False30s - Q15
When you get a mechanical advantage from a pulley system, the trade off is that you will have to pull more rope to lift the load.
truefalseTrue or False30s