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Vocabulary
Average Speed
Types of Forces
Friction
Miscellaneous
100
An object that changes position over time relative to a reference point
What is MOTION
100
This is divided by time to get the average speed
What is DISTANCE
100
These are the two types of forces
What is COMPRESSION and TENSION
100
Two factors that affect the friction between two surfaces
What is MAGNITUDE and the MATERIALS that make up the surfaces
100
An educated guess
What is a hypothesis?
200
The standard international unit for force
What is NEWTON
200
This is the average speed on a graph, also can be calculated by rise over run
What is SLOPE
200
The combination of all forces acting on an object
What is NET FORCE
200
True or False: Objects that weigh less will have more friction with another surface than an object that weighs more.
What is FALSE
200
This is how many millimeters are in a meter.
What is 1000?
300
A reference point that is the starting position of an object
What is ORIGIN
300
The average speed if you walk 7.5 km in 1.5 h.
What is 5 km/h
300
The two properties of forces
What is DIRECTION and MAGNITUDE
300
This is friction between moving surfaces
What is KINETIC FRICTION
300
The two measurements needed to find speed.
What are distance traveled and time?
400
The rate at which velocity changes over time
What is ACCELERATION
400
An airplane traveling from San Francisco to Chicago flies 1,260 km in 3.5 h. What is the airplane's average speed?
What is 360 km/h
400
The forces that are acting on these objects are balanced
What is STATIC
400
This needs to increase in order to overcome static friction (hint: think moving a heavy object)
What is FORCE
400
The number of meters in a kilometer.
What is 1000?
500
Substances that are put on surfaces to reduce friction
What is LUBRICANTS
500
The distance a person swam at 1.5 m/s for 70 s
What is 105 m
500
What the net force cannot be if there are unbalanced forces
What is 0
500
What you can do to the surface of an object to increase friction
What is MAKE IT ROUGHER
500
This is speed with direction.
What is VELOCITY?