Physical Science I
The word that means the ability/capacity to cause motion.
What is Energy?
What is free fall
when gravity is the only force acting on something
how does conduction vary from convection
Energy stored in and object due to its position
What is kinetic Energy?
How does the unit for mass differ from the unit for weight?
mass is in kg
weight is in newtons
Why does the moon affect the earth (tides) more than the sun does?
The moon is closer so the gravity is stronger.
What are 4 different types or Energy
?Mechanical, Chemical, Electrical, Nuclear, Thermal, Radiant/Light and Sound
What are the units Energy is measured in?
Joules and newton-meters.
What two factors affect air resistance?
surface area and velocity
move around faster
What is Gravitational Potential Energy formula and units
?= m*g*h Kg x 9.81 x meters
hint: mass*gravity*height
What is Work?
force x distance
500 x 30= 1500 Newtons
heat always travels in what direction?
from the warmer object to the cooler object
1/2*m*v^2
What is the formula for Kinetic Energy?
With a rocket taking off what is the action reaction pair? Do action reaction pairs act on the same object?
rocket pushes gasses down, gasses push rocket up
To prove that work is being done on an object the object has to .....
move
what is terminal velocity
When air resistance and gravity are equal on the object falling.