Simple Machines
This simple machine is a flat surface set at an angle, used to move objects up or down more easily.
What is an inclined plane?
The force that slows objects down when they rub against each other.
What is friction?
This piece of equipment must always be worn to protect your eyes during experiments.
What are safety glasses?
This simple machine makes it easier for humans to split wood or cut food by concentrating force on a sharp edge.
What is a wedge?
The unit for measuring force.
What is the Newton (N)?
A wheel with a groove and a rope running through it is called this simple machine.
What is a pulley?
Gravity is an example of this type of force.
What is a non-contact force?
In a fair test, you only change one of these.
What is the independent variable?
Lifting a heavy load with less effort is made possible with this type of simple machine.
What is a pulley or lever?
The invisible force that pulls everything on Earth toward its center.
This simple machine is often found in scissors and seesaws, where it allows rotation around a fixed point.
What is a lever?
Magnetic forces are strongest at these two parts of a magnet.
What are the poles?
When you repeat an experiment several times and get similar results, your data is said to be this.
What is reliable?
The three types of simple machines involved in a bicycle.
What is a wheel and axle, a pulley and a lever.
This piece of equipment is used in science experiments to measure the mass of an object.
What is a balance or scale?
A screw is actually this simple machine wrapped around a cylinder.
What is an inclined plane?
The upward push forced that keeps a parachute in the air is known as this force.
What is air resistance?
If you measure the growth of a plant in centimeters, “growth” is this type of variable.
What is the dependent variable?
In construction, a power drill uses rotating drill bit, which is this type of simple machine, to make holes in hard materials like wood or concrete.
What is a screw?
Archimedes discovered the principle of buoyancy while doing this activity.
What is bathing (getting into the bath)?
This simple machine is found in jar lids and bolts, and it increases force by converting a turning motion into a forward push.
What is a screw?
Name two examples of non-contact forces other than gravity.
What are magnetism and electrostatic force?
In science investigations, recording results in tables and then displaying them in graphs helps you do this.
What is identify patterns and draw conclusions?
This invention combined many simple machines to start the Industrial Revolution by powering factories.
What is the steam engine?
The first scientist to describe the three laws of motion.
Who is Sir Isaac Newton?