The Laws
Forces
I like to move it move it
balanced?
Grab bag
100
This is the law that goes with F = ma
What is Newton's Second Law of Motion?
100
The force that makes affects your weight.
What is gravity
100
What rate at which an object changes its position.
What is speed?
100
A piggy is pushing a box to the left with a force of 75 newtons (N). On the other side of the box there are two piggies pushing right each with a force of 35 newtons (N). What is the net force on the box and is the force balanced?
What is Net force = 5N to the left. The force is not balanced so, according to Newton's Second Law, the box will move in the direction of the force - to the left!
100
push or a pull
What is force
200
Equal and opposite reaction...
What is Newton's Third Law of Motion?
200
The force that eventually stops all moving objects
What is friction?
200
The units m/s/s measure this.
What is acceleration
200
You and a friend are pushing a car to the right. You are applying 108 N of force and your friend is applying 119 N of force. What is the net force applied to the car? Will the car move?
What is 227N is the net force. The car will move in the direction of the force (to the right)
200
property of matter that makes it resist change in its position.
What is inertia?
300
An object will accelerate in the direction of the force
What is Newton's Second Law of Motion
300
The type of friction that makes it hard for you to move an object that is standing still.
What is static friction?
300
If you know the direction and the speed you also know this.
What is velocity?
300
You are five minutes into a game of tug-of-war. Both teams are getting tired. Neither side is moving. What is the net force being applied to the rope?
What is 0. There is no movement when there is a net force of 0.
300
Is mass and weight the same thing?
Nope! Weight is a measure of how much gravity is pulling on you (it is a measure of force). Mass measures how much matter an object is made of.
400
This law is often referred to as the law of inertia. 100 bonus point if you can explain why.
What is Newton's First Law of Motion
400
This force is why the breaks on cars and bicycles work.
What is sliding friction
400
When something is slowing down it is doing this.
What is accelerating?
400
There are 4 people pulling on this years hottest Christmas item. They all want this toy and it is the last one available! Who will get the toy?
What is the person who applies the most force on the toy will get the toy. Objects accelerate in the direction of the force.
400
If you kick the flow what does the floor do to you?
Kick back with the same amount of force!
500
This is what happens when you break a law.
What is get arrested?
500
Can more than one force act on an object at one time? Explain.
Yes... answers will vary.
500
If I traveled 470 km in 18 hours what is my speed in meters/second?
What is 470km = 470,000m 18 hours = 64,800s Speed = Distance / Time 470,000m / 64,800s = 7.25 m/s speed = 7.24 m/s
500
If there is a 550g object free falling to earth how much force is acting on the object to pull it down?
F = ma m = 550g = .550kg a = 9.8 m/s/s .550kg x 9.8 m/s/s = 5.39 Newtons of force F = 5.39N
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