Forces
What is force?
A push or a pull
The ball in the corner of the wall wasn't moving it stayed still until Susy came along and kicked it for no reason
1st law
If a person pushes a box with a force of 25 newtons right and a person pushes left with a force of 52 newtons what is the net force?
27 newtons left
What unit is used to measure force?
Newtons
30 newtons left, 30 newtons right
No movement 0 newtons, balanced
This force slows down things, for example:
As the skateboard went over the rubble it was acted upon by --------
Friction
After shooting the Nerf gun your shoulder hurt from the impact
3rd law
What is the speed of a car traveling for 5 hours and going 75 miles in heavy traffic?
15 mph
What is acceleration
Measure of change in velocity during a period of time.
200 Newtons left, 100 Newtons right
100 Newtons left
Which force is the following example referring to?
As I drove up the hill the bike tires stayed firmly on the ground.
Interia. Gravity. Friction.
Gravity
The heavier ball took more force too move than the lighter ball
2nd law
If a person pushes a box with a force of 492 newtons right and a person pushes left with a force of 378 newtons what is the net force?
114 newtons right
What causes motion
Force, or unbalanced forces
100 Newtons South-east, 500 Newtons North-east
400 Newtons North-east
What causes our feet to not float off the ground
Gravity
Susy kicked a ball and that ball kept moving until friction acted upon it
1st law
20 Newtons are being applied going to the right, and 20 newtons are being applied going to the left. 15 Newtons are being applied up. What is the net force?
15 newtons up
A tendency to resist change in motion.
Inertia
200 Newtons North, 700 Newtons South
500 Newtons South
Which Force is the following as described:
When an object begins moving it will not stop unless acted upon by an opposite force. If an object is heavier it will have more -------
Inertia
When the same force is applied to lesser mass will expericence greater acceleration.
2nd law
Is it easier to move 10 pounds of rocks or 10 pounds of feathers?
Its just as hard to move both , they are both 10 pounds.
What are Balanced forces and unbalanced forces
Balanced forces: Equal forces that dont move, have a net force of zero.
Unbalanced forces: Unequal forces that move, they have a net force of anything but zero.
1234 Newtons left, 22 Newtons left, 1233 Newtons right
23 Newtons left