An example of this force can be observed during a kickball game when the ball is pitched, but the force between the ball and the ground makes the ball stop before reaching the kicker
friction
100
A simple machine that is usually used to hold things together and is made of an inclined plane on a post
screw
100
A knife is an example of this kind of simple machine.
What is a wedge
200
What are the two components of velocity?
speed and direction
200
the force that works against movement
friction
200
An example of this law can be observed when a tennis ball hits a net and falls to the court.
inertia
200
The simple machine most often used by a person in a wheel chair when entering a building that is not level with the ground.
inclined plane
200
A seesaw, a hammer, a crowbar, a light switch.
What is a lever
300
Newton's law that says an object will continue in a straight line unless a force acts on it AND that an object at rest will stay at rest unless a force acts on it
inertia
300
If two opposite forces are acting on an object with the same amount of force, what will happen?
the object will not move
300
An example of this law is when a ball is at rest on the soccer field until a player kicks it
inertia
300
A doorknob is an example of this type of simple machine.
wheel and axle
300
A screwdriver is this type of simple machine.
What is a wheel and axle
400
distance divided by time =
the distance an object can travel in a specified period of time
speed
400
Ms. Wallbrown's class and Mrs. Edmisten's class are playing tug-of-war. After several minutes, the students notice that the rope has not moved at all. What is one possible cause of this?
What is the two classes have created a balanced force on the rope.
400
An example of this is when a car screeches to a halt after breaks are applied
friction
400
Which two types of simple machines are actually types of inclined planes?
wedge and a screw
400
When raising a flag on a flagpole, you are using this type of simple machine?
pulley
500
When an object changes it's position
motion
500
What two forces are acting together to keep a cup balanced on a table?
What is gravity and the force of the table holding the cup up
500
Describe inertia
Newton's Law that says an object at rest will stay at rest unless a force acts on it AND an object will move in a straight line at a constant speed until a force acts on it
500
What type of simple machine would best be used to lift a heavy object multiple stories
pulley
500
The six kinds of simple machines.
What is wedge, screw, wheel and axle, lever, pulley, and inclined plane