Balanced or Unbalanced?
Left or Right
Wheels
Vocab
Friction - BONUS
100
If Gio pushes on a door with 100N of force and Vokhe pushes in the opposite direction with 100N of force.
Will the door move? Are these forces balanced or unbalanced?
Balanced Forces
100
Ms. Robbie pushes a box with 5N of force. Ms. Andrade pushes the box in the SAME direction with 10N of force.
Will the box move Left or Right?
What is the total force in that direction?
RIGHT
15 N of force
100
Fill in the blank:
When all wheels are the same size the cart is _____________.
BALANCED
100
What is the definition of balanced forces?
Balanced forces are equal and do not cause motion
100
Bowling alleys put grease on the bowling lanes to help the ball move easier and more quickly down the lane. Does the grease on a bowling alley lane cause more or less friction?
It causes less friction.
200
Mr. Damba pushes his shopping cart down the aisle and it moves. Are these forces balanced or unbalanced?
The forces are unbalanced.
200
A student pushes on a cart with 20N of force. A student pushes back in the opposite direction with 10N of force. Will it move left or right? What is the total force in that direction?
Left
10 N of force
(20-10=10)
200
What happens if one wheel is smaller than the other?
it will rolled curved TOWARD the smaller wheel.
200
What is the pole that goes between 2 wheels called?
the axle
200
Does carpet have more or less friction than hardwood floor?
It has more friction.
300
If Mrs. Powell leans on a wall with 15N of force and the wall does not move, are the forces balanced or unbalanced?
Balanced
300
20 N <-- -----------> 100 N
Right
80 N of force
300
When a wheel system has wheels of different sizes HOW DO YOU KNOW which way it will curve?
It will always curve toward the smaller wheel
300
What is the definition of force?
A push or a pull
300
If a soccer ball is rolling on the grass, what affect will friction have?
It will cause it to slow down and stop moving.
400
Draw a picture with ARROWS and NUMBERS that show balanced forces.
arrows & numbers must cancel each other out!
400
If Ms. Mallory pushed a box with 50 N of force and Ms. Rosa joined her and pushed in the same direction with 50N of force.
Will it move left or right?
What is the total force on the rope in that direction?
Left
100 N of force
400
Why does a cup roll down a ramp curved?
one end of the cup is bigger than the other end so it is unbalanced.
400
What is the definition of gravity?
Gravity is the force that pulls all objects towards the center of the Earth. It keeps objects from floating into space.
400
What is one example of friction in your everyday life?
(Answers will vary)
500
If a class plays tug of war and one side pulls with more force, the rope moves.
Are these forces balanced or unbalanced?
Unbalanced Forces
500
If Ms. B pulls on her desk with 10N of force and Ms. P pulls in the OPPOSITE direction with 10N of force.
Left or Right?
What is the total force?
It will NOT move! BALANCED!
500
To make a cart that goes the farthest what must be true about all 4 wheels.
they must be the same size.
500
What is the definition of unbalanced forces?
Unbalanced forces are unequal and do cause motion.
500
Does an ice skating rink have more or less friction than a gravel road?
It has less friction.