Newton
Speed
Velocity
Acceleration
Simple Machines
100
How many laws did newton discover?
3
100
What is speed?
the rate at which someone or something is able to move or operate
100
what is velocity?
the speed of something in a given direction
100
what is acceleration?
how velocity changes over time
100
What are simple machines?
any of the basic mechanical device
200
What are newtons 1 law?
first law of motion: a body remains at rest or in motion with a constant velocity unless acted upon by an external force
200
True or False?, Speed and Velocity are the same
False
200
what is an example of velocity?
Mrs.Taylor am driving 25 miles ,north
200
what is the formula for acceleration?
finally velocity-starting velocity/time
200
What is an example of a simple device?
Scissors,lever,and etc.
300
What is newtons second law?
second law of motion: the rate of change of momentum is proportional to the imposed force and goes in the direction of the force
300
what is an example of speed?
An example of speed would be a car traveling at the rate of 100 miles per hour.
300
Mr.Watt is on a treadmill.Does he have velocity or zero velocity?
zero velocity
300
Positive acceleration is when you __________
speed up
300
What are two families of simple machines?
the inclined plane family and the lever family
400
What is newtons third law?
action and reaction are equal and opposite
400
If you ride your bike 23 kilometers in 1.5 hours, what is your average speed?
23 kilometers divided by 1.5 hours = 15.333333 kilometers per hour
400
What does velocity include?
speed and direction
400
negative acceleration is when you ___________
slow down
400
Give 3 types of simple machines
(screw,ramp,and lever)
500
How many years did newton live?
84 years
500
what are things that go in speed?
(anything)
500
How do you make a change in velocity?
Either change the direction,speed, or both
500
In 55 mi/hr east, what is the speed and direction?
speed-55 miles per hour direction-East
500
Why do we use simple machines
Simple machines make work easier
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