What 2 things do you need to know to calculate speed?
Distance and Time
What is a force?
Push or Pull
Why does friction occur?
Opposing Forces
Microscopic Hills and Valleys Stick
What is Gravity?
Force of Attraction Between Objects
What is Harper's nickname?
Donut Queen!!!
What is the difference between speed and velocity?
Direction
What is the SI unit of force?
Newton (N)
What are harmful effects of friction?
Heat
Wearing Out an Object
Slain Injuries
What is the SI unit for mass?
KiloGRAM
What is Erin's nickname?
TacoLady2345
A Kangeroo hops 60 meters to the east in 5 seconds. What is the kangaroo's velocity?
12 Meters Per Second East.
What might happen when an object receives unbalanced forces?
It May Move
Describe 2 ways friction can be increased.
Rougher Surface
Increase Force
What is the force of gravity related to?
Mass
Distance
What is Harper's favorite color?
Purple
Why is it more helpful to know a tornado's velocity rather than its speed?
Velocity tells direction of the tornado, so people can get out of danger.
Describe 3 different ways you can accelerate when riding your bike.
Changed Direction
Slow Down
Speed Up
What are helpful effects of friction?
Brakes on a moving thing
Objects stay put
Tread on shoes, tires...
Describe 2 differences between weight and mass.
Weight is force of gravity on an object
Mass never changes (amount of matter in an object)
What is Erin's favorite color?
Blue (NOT BABY)
Emily can skateboard 120 meters in 8 seconds. What is her average speed?
15 Meters Per Second
0 Newtons
Name 3 ways friction can be reduced.
Smoother Surface
Sliding/Rolling
Lubrication
What is the Law of Universal Gravitation?
The greater the mass, the more gravity.
The greater the distance, the less gravity.
What is Erin's and Harper's middle name?
Erin: Elizabeth
Harper: May