Show:
Friction
Gravity
Motion
Lift, Drag, and Thrust
Force
100
True or False. A bike on grass is a form of friction?
What is true?
100
True or False: Does gravity hold us on the earth?
What is True
100
What best describes motion?


A) A change in position

B) Speed

What is A?
100
A parachute that slows down an airplane jumper's fall is an example of


A) Drag

B) Lift

A) Drag


100
True or False: An unbalanced force doesn't affect motion.
What is False
200
Which has the least amount of friction  


Ice or a sidewalk


What is ice?
200
What is the measurement of the force of gravity on an object? 


A. Weight 

B. Friction 

What is weight
200
If a mouse and a elephant were playing tug of war, the elephant would win.   Is this an example of balanced or unbalanced forces?
Unbalanced
200
The air that pushes an airplane's wings UP is called ____.


A) Drag

B) Lift

B) Lift
200
If a mouse and an elephant were playing tug of war, the elephant would win.  Are these forces balanced or unbalanced?
Unbalanced.
300
What is the definition of friction?
What is when two surfaces rub together and prevents or slows motion.
300
What is the force that acts between any two masses and pulls them together? 


A. Unbalanced force

B. Gravity

What is Gravitational force
300
Unbalanced forces will cause something to move in:


A) The direction of the greater force

B) The direction of the weaker force?

A) The direction of the greater force

300
The opposite force of drag is ______. 


A) Gravity

B) Thrust

B) Thrust
300
A____ is a push or pull. 


A. Gravity

B. force 

What is B.
400
Other than rubbing your hands together, give an example of friction. 
Teacher decides
400
True or False: A corn dog will fall faster than a peanut?
What is False
400

Which qualities are needed to describe velocity?

A) Distance, location and time

B) Distance, time and direction



B) Distance, time and direction

400
When you did the experiment with the balloon, pennies, straw, and string, what provided THRUST for your straw to move quickly down the string?


A) Balloon            B) straw .           C) Pennies

A) Balloon
400
If two boys who both weigh 85 pounds were playing tug of war and were both pulling equally on the rope, would these be balanced or unbalanced forces?
balanced
500
Which makes more friction? 


A) water sliding down a pane of glass

B) a ball rolling over grass 

What is B.
500
Give an example of gravity working.
Teacher decides
500
Show me motion
Up to teacher
500
What force is opposite of gravity?


A) thrust      B) lift       c) drag

B) lift
500
What is a balanced force? 
What is Equal forces that act in opposite directions on an object and cancel one another out.