Measuring Motion
What is the distance traveled by an object divided by the time taken to travel that distance?
What is Speed.
Pushing or Pulling
What is force?
A force that stops motion between two surfaces that are in contact
What is friction?
The force of attraction between objects that is due to their mass
What is gravity?
Name one way to increase friction
Scattering sand on icy roads
Wearing batting gloves
Increase the force
What units do you use to express speed?
What is meters per second
Unit over time
How do scientists express force. (how is it measured)
What is the unit Newton?
When a surface is rough is the friction weak or great?
Great
How come astronaut float in space?
Name one way to reduce friction
Lubricants
An object's change in position relative to a reference point.
What is motion?
All forces acting upon an object.
What is net force?
If there is a smooth surface is the friction weak or strong?
Weak
Who watched an apple fall from a tree and made connections about gravity
What is the answer to this problem?
5 m/s -1 m/s divided by 4s
1 m/s2
The speed of an object in a particular direction.
What is velocity?
When the forces on an object produce a net force of 0 N
What are balanced forces?
Why can an ice hockey puck slide across the floor so easily?
There is very little friction.
Measure of the amount of matter in an object?
What is mass?
Why is it important to know the velocity of a tornado
To know the direction at which the tornado is traveling
The rate at which velocity changes over time.
What is acceleration?
When the net force of an object is not 0 N
What is an unbalanced force?
What are the two types of friction?
Measure of gravity on an object
What is weight?
The relationship between gravitational force, mass, and distance