A
What unit is force measured in?
Fill in the blank:
The arrows in the force diagram shows the ___________ of the force.
Direction
What tool do we use to measure force?
Spring balance
What will you do on Saturday?
Make sure to use correct English.
I will_________________.
True or False:
The rougher the two surfaces in contact, the less friction will be between them.
True or false:
Friction will slow down moving objects.
True
What is the date on Sunday?
Date, month and year
28th August 2022
True or false:
The heavier the object, the more friction is will have.
True
What is a force?
is a push or a pull on an object
What does the length of the arrow in a force diagram represent?
Magnitude
How much force there is.
What is friction?
The force that acts in the opposite direction of the movement.
What is the resultant force?
The resultant force is the single force that has the same effect as two or more forces acting together.
Suppose two forces are acting equally on an object in opposite directions. Which direction will the object move? Explain (Resultant force)
It won't move. The resultant force is 0N
Name two factors that affect friction.
The texture of the contacting surfaces.
the weight
Give me an example of friction
blah blah blah
If two forces are acting in opposite directions.
Force A(4N pushing right)
Force B (6N pushing left).
What is the resultant force? Explain
The resultant force is 2N to the left.
6- 4 = 2
Name 3 advantages of friction.
If two forces are acting in opposite directions.
Force A(11N pushing right)
Force B (6N pushing left).
What is the resultant force? Explain
Resultant force is 5N right
11-6 = 5
Name 3 disadvantages of friction
Friction wears out surfaces that are in contact.
Friction slows down moving objects, like a boat in the water.
Friction produces unnecessary heat and noise.
Who discovered force and friction?
Isaac Newton