Motion
A force caused when two objects rub against one another.
What is friction.
When you drop an object, this force pulls it toward the ground.
What is gravity.
A natural force that is caused by earthquakes underwater.
What is a tsunami.
Does an item with strong friction have a rough or smooth surface?
What is rough.
Does Earth use a pushing or pulling force to keep us on the ground?
What is a pulling force.
What force is created when objects produce a charge?
What is electrostatic force.
A natural force caused by the shifting of the ground.
What is an earthquake.
Kicking is an example of a _________ force.
What is a push force.
Does the force of friction create movement or slow it down?
What is slow it down.
Name the two forces are acting on a ball rolling down a hill.
What is gravity pulling it down and friction slowing the ball.
When two objects have similar charges they _____ one another.
What is repel.
A natural force that is caused by a release of electricity from the atmosphere, seen as a bright light.
Lightning.
Name a material that has weak friction.
Many possible answers: ice, class floor.
What would happen if gravity didn't exist?
What is everything would float.
What types of material do magnets attract?
What is metal (nickel, iron, cobalt or steel).
True or False. The size of the magnet determines how strong it is.
What is false.
An object at rest, will stay at _____. **Bonus: What is this law of motion called?**
What is rest & inertia.
Give a real-world example of how humans increase friction for safety reasons.
Many answers: wearing boots in winter, boots with tread, carpet on stairs.
Name two forces we've discussed in class.
What is physical/muscular, gravity, magnetic force, friction, and electrostatic force.
Balloons with the same charge will _____ each other.
What is repel.