Speed
What is speed?
What is how fast an object is moving, motion
What is velocity?
Velocity is the motion of an object like speed but with a direction included.
What is gravity?
It is the downward force of motion that keeps things grounded.
What is the unit for time?
Time = sec., min., hours, etc.
Speed
m/s
How did we find time with the roller coaster?
We used the stopwatch to see the time length of the roller coaster!!
What is final velocity and initial velocity?
Final Velocity is when the coaster ends or the velocity ends.
Initial velocity is when the roller coaster begins or when the velocity begins.
Why do astrounuts on the moon float?
Because on the moon there is less gravity on the Earth, so people float on the moon.
What is the variable for time?
Time = t
Velocity
m/s
What is the calculation equation for speed?
What is s = d/t or What is speed = distance/time
What is the formula for acceleration
Final velocity - initial velocity/ final time -initial time
What is the variable for gravity?
What two things do you need in order to calculate speed
You need the distance and the time of an object
Time
seconds, minutes, hours, etc.
Answers can very for all units questions :) :)
What is one example of when the marble would speed up in the rollar coaster?
Anytime it is moving :)
When is something accelerating?
When it is speeding up or slowing down in any direction
What is the (normal) gravity on Earth?
9.8 m/s2
Why did we get the time by finding the average of three times?
To get the most relistic time in case something goes wrong one time we got the average.
Gravity
(m/s2)
what is an example of a unit for speed?
miles/hour or meters/second, etc.
Answers can very!!
What is one example in the roller coaster when the marble would be accelerating.
When it goes downward in the staircase, etc.
Why is it important to learn about gravity?
It is important to understand why and how we can stay on the ground and the different kinds of quantities that make it this way.
How did we figure out the time with the rollar coaster.
We used the stop clock to time our rollar coaster, three times, and we found the avarage.
Acceleration
(m/s2)