Levers
I am the pivot point of the lever.
What is a fulcrum?
This wheel can be used to change the direction of a vehicle.
What is a steering wheel?
This basic drive system changes the direction of force. It can be used to grind things like coffee.
What is wheel-to-wheel?
A wheel is mounted on this so that it can move.
What is an axle?
I am the unit of measurement used to measure force.
What is Newton?
I am a lever that was used in medieval times to knock out castle walls.
What is a catapult?
Elastics and balloons use this stored force move.
What is tension?
This type of drive system allows you to move where force is applied not to hold of your pants.
What is a belt drive system?
You want to reduce this force which prevents wheels from spinning freely.
What is friction?
I am the tool used to measure the force used to lift or drag a mass.
What is a Newton Spring Scale?
This park contraption is an example of a first class lever used by children.
What is a see-saw?
What is a drive system?
These teeth are added to wheels in this type of drive system.
What are gears?
This ancient form of the wheel was used by the Egyptians to build the pyramids.
What is a roller?
I am the force that makes it harder to lift objects. There is very little on the moon.
What is gravity?
This second class lever is used with a wheel to move heavy objects around a yard.
What is a wheelbarrow?
A car uses these to apply friction to the wheel.
What are brakes?
A bike uses gears and this to change where force is applied in this drive system.
What is a chain?
This type of wheel and rope system allows you to change the direction of the force applied.
What is a pulley?
The closer an object is to a fulcrum the _______ force you need to lift it.
What is less?
This type of third class lever in your body is used to throw a ball.
What is the elbow?
Wheels were made of rubber to help them get more of this. It's what makes them not slide on the road.
What is traction?
We added rubber in our wheel to wheel drive system models in class to prevent this.
What is slippage?
This type of pulley system reduces the amount of force required to lift an object but increases the amount of pulling you need to do.
What is a block and tackle?
I am an example of a first class lever where force is applied from two sides. Hint "I can be used to cut things."
What are scissors?