Why do things go in a straight line?
Change of Rates
Brain Teaser
Momentum
Why Do things Turn?
100
An object at rest tends to remain at rest and an object in motion tends to remain in motion unless acted on by an unbalance force.
What is Newton's 1st Law of Motion?
100
Speed= Distance/time
What is the equation of speed?
100
Johnny
Johnny's mother had three children. The first child was named April. The second child was named May. What was the third child's name ?
100
the force that is perpendicular to the surface
What is normal force?
200
Force of Weight, Force Applied, Normal Force, Friction
What are the four force? (Give examples of each)
200
Velocity=displacement/ time
What is the equation of velocity?
200
meat
A clerk at a butcher shops stand 5 feet 10 inches tall and wears size 13 sneakers. What does he weigh?
200
The rate of change of momentum is proportional to the imposed force and goes in the direction of the force.
What is Newton's 2nd Law of Motion?
200
the force acting inward
What is centripetal force?
300
y= mx+b
What is an equation of a straight line?
300
Distance is how far you have traveled in total and displacement is how far you are from your starting point (zero)
What is the difference between distance and displacement?
300
There is no dirt in a hole
How much dirt is there in a hole that measure 2 feet by 3 feet by 4 feet.
300
The more mass the more resist and object is to move, stop, and rotate. (Inertia/ rotating inertia)
How does mass affect an object?
300
Torque = distance * force
What is the equation of torque?
400
The tendency of an object to resist being moved or, if the object is moving, to resist a change in speed or direction.
What is Inertia?
400
Ms. Medina ran 75 yards in 9 seconds. To calculate velocity you take 75 yards and divide it by 9 seconds. Ms. Medina's velocity is 8.334 yards/second
Ms. Medina caught the football at the 25 yard line and ran it in for a touchdown in 9 seconds. What was his velocity?
400
One because he combined them all.
A farmer has five hay stacks in one field and four hay stacks in another. How many hay stacks would he have if he combined them all in one field?
400
Momentum is mass in motin
What is momentum?
400
He had to change his distance in order to create more momentum so his velocity would be great enough to make the loop.
In the motorcycle video, why did the guy have to do multiply attempts? What did not work and what did he have to change?
500
Unless there is an unbalance force, objects keep doing the same thing.
Why do things move in a straight line?
500
To calculate acceleration you first need to calculate velocity. Velocity is distance/time. So her velocity is 9.667 meters/second. To calculate acceleration is velocity/time. Ms. Ortiz's acceleration is 10.4058 meters per second squared
Ms. Ortiz jumped off a diving board which was 9 meters high. She hit the water after .93 seconds. What was her acceleration when she hit the water?
500
Tuesday, Thursday, today, and tomorrow
Name four days of the week that start with the letter "t"?
500
Acceleration = Force/ Mass and Acceleration =Velocity / time
What is the equation for acceleration in relation to momentum?
500
Unless acted on by an unbalanced force, objects move in straight lines. In order to move in circles, objects need an inward force called centripetal force. To make it through a loop, a roller coaster needs enough velocity so that normal force provides the centripetal force. To achieve this velocity, you can start the roller coaster up very high or give it an initial velocity.
Explain how a roller coaster is able to make a loop. Make sure to include normal force, centripetal force, and velocity in your explanation.
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