Speed
What is the formula for velocity?
Velocity = Distance / Time with a direction (must be with a direction)
What is the formula for acceleration?
Acceleration = Final Velocity - Initial Velocity / change in time
The definition of motion.
When an object's distance from another object changes.
The ability to do work.
What is energy?
What is the velocity of an object that is moving 6 meters in 2 seconds east?
3 m/s east
What are three ways we can tell if something is accelerating?
increasing its speed; decreasing its speed; changing direction
What you use to determine if something has moved.
Reference Point
This law tells us that energy cannot be created or destroyed but only transformed from one form to another.
What is the Law of Conservation of Energy?
Distance = 20 meters Time = 4 seconds Direction = south What is the velocity of this object?
5 m/s south
Final Velocity = 60 m/s south Initial Velocity = 50 m/s south Time to change velocity = 5 seconds What is the acceleration of this object?
2 m/s2 south
The distance in a straight line between an object and its original reference point is known as this.
What is displacement?
These sources of energy come from our fossils fuels, they are also not easily replaced.
What are non renewable resources?
An object travels 25 meters in 2 seconds east. What is it's velocity?
12.5 m/s east (must include direction!)
If Jackson is riding his bike at 20 mph then turns right onto a trail and continues riding his bike at 20 mph has he accelerated?
Yes, he changed direction therefore he accelerated.
If you were skating on a skateboard and all of a sudden the skateboard hit a rock, what would happen to you? Which of Newtons Laws would this best represent?
You would continue to fall forward until to you hit the ground, because Newton's First Law states an object in motion will remain in motion unless acted upon by an unbalanced force.
A rubber band has energy stored based on its ability to bend, flex or stretch. Also known as this.
What is Elastic Potential Energy
What is the speed of an object moving east for 6 seconds at 105.3 m/s?
105.3 m/s
A pink alien moved south in its spacecraft for 2 km at a rate of 20 m/s. How much time did it take him to do this in seconds?
100 s
If Leah was running a race at 4 m/s then she saw Sara catching up so she sped up finishing the race 4 seconds later at a speed of 12 m/s. What was her acceleration during this point of the race?
2 m/s2
Yes work has been done, because you are using force to move an object a distance.
This form of energy often associated with heat, is usually a byproduct of most energy transformations and lost because of friction.
What is thermal energy?