Forces & Motion
Electricity & Magnetism
Atoms & Matter
Space & Gravity
Scientific Thinking
100

This invisible force pulls everything toward the Earth.

What is Gravity?

100

This is created when you rub things together and can cause a small shock.

What is static electricity?

100

This is the part of an atom that has a negative charge.

What is an electron?

100

Gravity gets stronger when these two conditions are met.

What is when things are closer and have more mass?

100

This is the unit scientists use to measure force.

What is the newton?

200

This force slows down moving things, like a rolling ball.

What is Friction?

200

This type of charge is found on electrons.

What is a negative charge?

200

This is how we measure the amount of matter in an object.

What is mass?

200

This happens to the strength of gravity as you move farther from Earth.

What is it gets weaker?

200

 This scientific law explains why objects stay at rest or in motion unless a force acts on them.

What is Newton’s First Law?

300

This happens when the forces on an object are unbalanced.

What is motion (or the object changes motion)?

300

These forces can attract or repel without touching.

What is electric and magnetic force?

300

This changes depending on gravity and is measured in newtons.

What is weight?

300

This object has a stronger gravitational pull: a feather or a car.

What is a car?

300

This is what you call a force that happens when two surfaces rub.

What is friction?

400

This law explains why a person moves backward when they jump off a swing.

What is Newton’s Third Law?

400

This happens when like poles of two magnets face each other.

What is they repel?

400

This part of a magnet is where its force is the strongest.

What are the poles?

400

This is how gravity helps planets stay in orbit.

What is gravitational pull?

400

This is what happens to electric force when objects get farther apart.

What is it gets weaker?

500

This is what we call the total of all forces acting on an object.

What is net force?

500

This term describes rearranging charges without touching, just by being nearby.

What is induction?

500

This is a group of tiny magnets inside a material that all point in the same direction.

What is a magnetic domain?

500

This invisible area around a planet affects other objects.

What is a gravitational field?

500

This is why a balloon sticks to a wall after you rub it on your head.

What is because of static electricity?