motion
Define motion.
The action or process of being moved,or moving
define force.
strength or energy as an attribute of physical action or movement.
What energy do we give off when we run/work?
Mechanical energy
what is the formula for speed?
s=d/t
What is the weakest force we know?
Gravity
to reduce friction, to keep things moving, what do people tend to use?
Slippery things, things without much friction
what is a balanced force?
a force equal in magnitude but opposite in direction.
when you set wood on fire, what type of energy does it give off?
chemical energy, then thermal energy
What is speed?
Distance traveled per unit of time
What is gravity?
A force that pulls towards its center.
What is circular motion?
movement of an object on the circumference of a circle.
What is the unit of measure for force?
Newton (N)
what are the energy changes that take place in the sun?
nuclear, light, and heat
s=65mi/7hr
s=?
(round to the nearest tenth)
s=9.3mph
does gravity have infinite range? Yes or no?
Yes
Why is it important to have motion?
Motion strengthens your muscles to better support your body. It also makes the world go 'round.
what is the formula for force?
force = mass x acceleration
what is potential energy?
The energy stored in an object by virtue of its position.
s=239mi/76hr
s=?
(round to the nearest tenth)
s=3.1mph
What is the value of gravity?
9.8 m/s2
what are Newton's laws of motion?
An object at rest will stay at rest, and an object in motion will remain in motion unless acted upon by an outside force.
Force equals mass times acceleration.
for every action, there is an equal and opposite reaction.
is friction a type of force? yes or no?
Yes.
What is kinetic energy?
energy associated with the movement of an object
s=546km/36s
s=?
(round to the nearest tenth)
s=15.2km/s
What are ocean tides caused by?
gravity of the moon