Machines that Solve Problems

Machines without motors are called:

• simple machines

• motorless machines

• motor

• simply motors

A slide is a simple machine

• true

• false

What is a force?

• a mythical power used in outer space

• a lift, a push, or a pull that makes things move

• the object being lifted

• to make someone do something

Force moves a load. What is a load?

• a simple machine

• laundry

• the object being lifted, pushed, or pulled

• a force

What are examples of a simple machine?

• pulley

• wheel and axle

• inclined plane

• wedge

• all of the above

Your teeth are simple machines. They are a:

• lever

• pulley

• wedge

• inclined plane

What did Becky Schroeder invent?

• hot chocolate

• glow in the dark paper

• trampoline

• square paper bag

What does a patent give the inventor?

• money

• a bag of peanuts

• Ownership of their invention

• a picture of them with their invention

Who invented the trampoline?

• Henry Ford

• George Nissen

• Becky Schroeder

• Margaret Knight

Why do inventors invent?

• to make the world a better place

• to solve a problem

• to get a patent

• to become famous