Simple Machines
This simple machine is like a ramp.
What is a inclined plane?
A seesaw and a pair of scissors are both this class of lever.
What is a first class lever?
This type of energy is stored energy.
What is potential energy?
A jar lid and light bulb are both example of which simple machine.
What is a screw?
Which type of wheel and axle will make work easier? A larger or a smaller wheel?
What isa larger wheel?
This type of simple machine is a rope in a grooved wheel. The more of these you add to your system, the less effort it takes to lift something.
What is a pulley?
A pair of tongs or a fishing rod can be classified as this type of lever.
What is a third class lever?
Motion energy is called this.
What is kinetic energy?
A dolly (or hand truck) is what two simple machines?
What is a lever and a wheel & axle?
Which type of screw will make work easier? One with more threads or less threads?
What is one with more threads?
This simple machine is an inclined plane wrapped around a shaft.
What is a screw?
What are second class levers?
Sound, light, electrical, and thermal energy are all this type of energy.
What is kinetic energy?
An axe head is an example of this type of simple machine.
What is a wedge?
True or False:
The further away your effort is from the fulcrum, the easier it is to lift your object.
What is true?
This type of simple machine is a rigid bar that pivots on a fulcrum.
What is a lever?
When the fulcrum is in the middle, a lever is said to be this class.
What is a first class lever?
Gravitational, nuclear, chemical, and elastic are all this type of energy.
What is potential energy?
A clothesline is an example of a _________.
What is a pulley?
True or False:
In order for work to be done, something has to move a distance.
What is true?
This simple machine is two inclined planes back-to-back.
What is a wedge?
This type of lever has the effort in the middle.
What is a third class lever?
Gravitational potential energy depends on these two things.
What are mass and height?
A flat-head screwdriver could be which types of simple machine?
What is a lever, a wedge, and a wheel & axle?
Simple machines change the amount of work done and they make the work easier.
What is False?