Scientific method and measurement
This type of data describes qualities or characteristics rather than numbers
quantitative data
what is the term for the rate an object moves without direction
speed
How is velocity different than speed?
It includes direction
Energy that is stored due to an object's position above the ground
gravitational potential energy
A push or pull acting on an object
A force
The variable that is measured as the outcome of an experiment
dependent variable
what unit is used to measure distance in the metric system
Meters
In order to calculate momentum, what two quantities must be known?
mass and velocity
Force x Distance = __________
Work
Forces that act without direct contact, such as gravity
non-contact forces
This group does not receive the experimental treatment and is used for comparison
Control group
On a position vs time graph, what does the slope represent?
Velocity
What is the unit for momentum
Kg m/s
The rate that work is done is called this
Power
When forces are equal and opposite, there is no change in motion. The forces are _________
balanced
These are kept the same in an experiment to ensure a fair test.
controlled variables (constants)
what is the term for the change in velocity over time
acceleration
the total momentum before and after a collision is equal according to this
Law of conservation of momentum
What are the three types of heat transfer
conduction, covection, and radiation
What is the equation to calculate force
F = ma
The number of centimeters in 0.55 kilometers
55000 cm
If the velocity of an object is negative and the acceleration is negative, the object is
Speeding up
Acceleration due to gravity is equal to this
9.8 m/s2
The law that states that energy cannot be created or destroyed is called this
Law of Conservation of Energy
When forces are unbalanced, an object must be ______________
accelerating