Speed
I am speed. Who am I?
Lighting McQueen
What is a vector?
a measure that has size and direction
A Train is traveling at the speed of 10 m/s at the top of a hill. Five seconds later is reaches the bottom of the hill and is moving at 30 m/s. What is the rate of acceleration of The Train?
4 meters per second squared.
What is the gravitational pull on objects, here on earth?
9.81 m/s2
What has to be broken before you can use it?
An egg
What 2 quantities do we need to calculate speed?
distance and time
What is Conservation of Energy
...energy is not created or destroyed, only transferred.
How many velocity changes can happen at a traffic light?
3
velocity change - speed decreases/ increases - direction change
My direction changes. Did I accelerate?
yes.
What month of the year has 28 days?
All of them
How fast our position changes
Evan travels from his house to NGC and back home. What is his displacement?
0
Speed + Direction
What is Vector
What does acceleration measure?
how quickly the velocity is changing.
You can carry it everywhere you go, and it does not get heavy. What is it.
Your Name
The force of air on an object as it falls to Earth
Air resistance
Big Mike's truck accelerations from 0 m/s to 70 m/s in 5 seconds. What is the acceleration of Big Mike's truck?
14 meters per second squared
What 2 quantities make up velocity? example
size and direction. km/h
A car starts at rest and accelerates to 8m/s, in 2 seconds. What is it's acceleration?
4 m/s2
What gets wet while drying?
If I run 7 laps of a 400m track at an average speed of 6m/s. How long will it take me?
466.6 secs
Pete loves to sled down his favorite hill. If he hits a speed of 50 m/s after 5 seconds, what is his rate of acceleration? Hint: He starts at 0 m/s at the top of the hill.
10 meters per second squared
Bobby drives his car at a speed of 60 miles per hour for 4 hours. How far has he driven?
240 miles.
What is the formula for acceleration?
a = Vf - Vi / t
David’s parents have three sons: Snap, Crackle, and what’s the name of the third son?
David