True or False: Some complex machines need electricity to work?
True
Discovery or Invention?
Invention
True or False: Complex machines make dificult or dangerous tasks easier.
True
What do we use a telephone for? A) To wash clothes B) To communicate with people C) To go from one place to another
B) To communicate with people
True or False: A simple machine has many moving parts.
False. A simple machine has a few or no moving parts.
Discovery or Invention?
Invention
What simple machine is this?
A screw
Discoveries are things that we _______. A) Find B) Make C) Color
A) Find
What do we call machines with more than two parts?
Complex Machines
Is this a complex or simple machine?
Complex
What tool does a painter need to do their job? A) A hose B) A paintbrush C) A screw
B) a paintbrush
Discovery or Invention?
discovery
Is this a complex or simple machine?
simple
What simple machine is this? A) Lever B) Pulley C) Wedge
C) Wedge
What tool does a firefighter need to do their job? A) A hose B) A paintbrush C) A screw
A) A hose
Inventions are things that we _______ that didn't exist before. A) Find B) Color C) Make
C) Make
We use a _______________ to cut objects.
Wedge
We use a ____________ to lift objects.
Pulley
Is this robot a complex or simple machine?
complex
Is this a complex or simple machine?
Simple
Name the 6 types of simple machines we studied in this unit.
1. Lever 2. Wheel and axle 3. Pulley 4. Inclined plane 5. Wedge 6. Screw
True or false: Tools and machines help people every day to make work more dificult.
False. Tools and machines help people everyday to make work easier.
How many parts do simple machines have?
One or two parts
Discovery or Invention?
Discovery