MOTION
What two things must you know to calculate speed?
Total distance and Total time
What is the SI until of force?
Newton (N)
why does friction occur?
Opposing Forces Microscopic hills & valleys stick
What is gravity
Force of attraction between object
What needs to be included when you are drawing a circuit?
Battery
Switch
Wires
and Light Bulb
What is the differnce between speed and velocity?
Velocity = direction
What is a force?
Push or pull
Describe two ways friction can be increased
Roager surface Icreas force
What is the force of gravity related to?
Mass distance
If there is something sitting in a wagon that weighs 10kg and is NOT MOVING, what direction is the force going?
10kg Down
Why is it more helpful to know a tornado's velocity rather than its speed?
Velocity tells the direction of the tornado so people can get out of danger
Clay and Tyler were helping a friend move a couch Clay pushed the couch with 25n East
--> 30N
Name 3 Ways Friction can be reduced
-lubrication (grease, wax, etc.)
-Sliding and Rolling
-Making the surface smoother
Larger mass=More Gravity
Greater Distance=Less Gravity
What are some examples of Electrical Conductors
Copper
Aluminium
Metals
If Emily skateboards 120m in 8 Seconds, What is her Average Speed?
120m/8s = 15m/s
What happens when and object receives unbalanced forces?
It may move
Harmful Effects of Friction
-Heat
-Wearing out an object
-Skin Injuries
What is the SI unit for mass
Kilogram (kg)
List some examples of Electrical Insulators:
Wood
Cardboard
Glass
Paper
Fabric
A Kangaroo hops 60 meters to the east in 5 seconds. What is the Kangaroo's velocity?
60m/5s = 12 m/s East
Describe three different ways you can accelerate when riding your bike
-Change Directions
-Slow Down
-Speed up
What are helpful effects of Friction
-Brakes (car, bike, train)
-Objects stay put
-Tread on shoes
Describe two differences between weight and mass?
-Weight is force of gravity on an object.
-Mass never changes
What items do you need for an electromagnet to work?
Battery
Wire (Coiled)
Core (Nail, Spoon, Etc.)