2
What is the unit used to measure force?
What is applied force?
Pressure applied by a living thing on an object.
True or False? Simple machines have many parts
False
Gravity and air pressure are opposite forces
True
What is force?
A push or a pull
What is gravity
The natural force applied to us pushing us toward the center of the Earth
What is the effect of force that happens when someone catches a ball
Stop the object from moving
A simple machine with a rope around a wheel to make lifting things easier
A pulley
True or False? Force work in pairs.
True
What is a simple machine that can push something heavy away from it.
Lever
What is a simple machine that is designed to cut through objects with a sharp point at the top or front
A wedge
A simple machine which consists of a wheel and a rod
Wheel and Axle
What is a bar that has an inclined plane that is wrapped around it
Screw
Provide an example of two types of simple machine
lever, pulley, inclined plane, screw, wheel/axle, wedge
lever- hockey stick
pulley- gym equipment
inclined plane- ramp
screw- screw
wheel/axle- car
wedge- knife
What effect force has when someone hits a moving ball
change its direction/increase its speed
Give an example of normal force
Vase on table et c