Simple Machines
A machine made of two sloped sides that meet in a sharp edge to cut or split things.
Wedge
A seesaw is an example of a simple machine called a
Lever
What is it called when two objects touch
Contact Force
What is it called when a force can act without touching, like gravity or magnetism.
Non-Contact force
When 2 EQUAL forces are applied on an object in opposite directions, the force is...
Balanced
A simple machine that looks like a twisted inclined plane used to hold things together.
Screw
A flagpole uses a rope and wheel to lift the flag, which is a
Pulley
A force that makes things slow down or stop
Friction
True Or False: Gravity is a force that pushes things up into the air.
False
True or False: Unbalanced forces make objects move or change direction
True
A slanted surface that helps move things up or down more easily.
Inclined Plane
This machine is used to hold things together, like when you twist the lid onto a jar.
Screw
What is it called when two things bump into each other
Collision
push or pull between things that have electric charges.
Electrostatic Force
A toy car moves forward when pushed, but slows down and stops. Name two forces acting on it.
Push and Friction
Is round and helps turn or move things more easily, like a doorknob.
Wheel and Axle
A ramp outside a building helps people and wheelchairs go up more easily.
Inclined Plane
When bicycle brake pads squeeze a bike tire to stop it, it is which force in action.
Friction
A ball comes back down to the Earth because of
Gravity
This is the word for two or more forces acting on the same object at the same time.
Combined Forces
This simple machine functions with a Fulcrum
Lever
A knife, an axe, and even your teeth are real-life examples of this machine that cuts or splits things.
Wedge
If someone is sliding a box across the floor, what force are they using?
Push Force/Contact Force
A force that can pull CERTAIN objects, like iron, without touching them
Magnetism
Besides wheel and axle, what other important mechanism helps move the bike
Gears