Simple Machines
Work and Power
Vocabulary
Motion
Speed
100
What type of Simple Machine is this?
What is a lever?
100
Which has more power a rake or a leaf blower?
What is a leaf blower?
100
Define Work.
What is Force times Distance?
100
This person developed what is known as the Three Laws of Motion. The story is that it began with an apple falling on his head!
Who is Iassac Newton?
100
Ethan bikes 10 miles in 2 hours. What is his speed?
What is 5 miles an hour?
200
This simple machine can hold a door open for you.
What is a Wedge?
200
You are running uphill, while your friend runs down the same hill. Who had to use more effort you or your friend?
What is ME?
200
What is work divided by the time it takes to do the work called?
What is POWER?
200
An object cannot move, unless a ____________ acts on it.
What is a force?
200
What is the name of the force resisting the motion of one object against another?
What is friction?
300
This Simple Machine is found on the top of a pickle jar.
What is a screw?
300
Two students are pushing on a box as shown. If the boy on the left (yellow shirt) pushes with a greater force than the boy on the right (red shirt), which way will the box move? Toward the boy in the yellow or the boy in the red?
What is the boy in the red??
300
The Force that resists the motion of one object against another.
What is Friction?
300
A student twirls a ball on the end of a rope over their head. What type of motion is this?
What is a Circle?
300
Ria kicks her soccer ball across the grassy field. What could make her ball slow down?
What is friction?
400
This simple machine is sometimes known as a ramp.
What is an inclined plane?
400
Which way will the boxes shown below move? Why?
What is to the left because both forces are acting towards the left?
400
The amount of work done in a certain period of time is called ___________.
What is Power?
400
What is the path of motion when you are swinging on a swing in the park?
What is back and forth?
400
A student can run 4 miles in an hour. How long will it take them to run 8 miles?
What is 2 hours?
500
This type of machine is made up of more than one simple machine.
What is a compound machine?
500
Newton's first law states that objects tend to do what they are already doing, unless a force acts on them. This law is called inertia. What is the force that moves a bowling ball down a lane in a bowling alley?
What is the force applied by the bowler?
500
The name given to the type of machine made up of one or more simple machines. Give an example.
What is a compound machine?
Bicycle, car, lawn mower, anything with a motor!
500
An glass is at rest on the top of a table. What force is acting on it?
What is gravity?
500
A student can walk at a speed of 2 miles an hour. How long will it take her to walk 10 miles?
Speed = Distance divided by time
What is 5 hours?