A
THE "LAW OF INERTIA" IS ALSO KNOWN AS THIS
A PUSH OR PULL ON AN OBJECT
FORCE
GRAVITY DEPENDS ON THESE 2 PROCESSES
DISTANCE and MASS
WHEN AN OBJECT EXERTS A FORCE ON A SECOND OBJECT, THE SECOND OBJECT EXERTS AN EQUAL AND OPPOSITE FORCE
NEWTON'S 3RD LAW OF MOTION
If an dog has a mass of 27 kg on Earth, what does it weight in newtons?
264.6 N
WHEN ALL OBJECTS RESIST A CHANGE IN MOTION
INERTIA
WHEN GRAVITY IS PULLING DOWN ON AN OBJECT AND NO OTHER FORCES ARE ACTING ON IT
FREE FALL
WHEN THERE IS A COMBINATION OF FORCES ACTING ON AN OBJECT
NET FORCE
when an objects travels around another object in space.
When is an object in orbit
If an elephant has a mass of 500 kg on Earth, what does it weight in newtons?
4900 N
WHEN ALL OBJECTS RESIST A CHANGE IN MOTION
INERTIA
WHEN THERE IS A FORCE OF ATTRACTION BETWEEN 2 OBJECTS DUE TO THEIR MASS
GRAVITY
WHEN 2 OBJECTS ARE APPROACHING EACH OTHER IN A STRAIGHT LINE, THE GRAVITATIONAL FORCE BETWEEN THE 2 OBJECTS WILL DO THIS
INCREASE
Why doesn't the Earth simply fall into the Sun ?
The Earth is in the Sun's orbit.
If you need to find the weight of a 50 kg rock on Mars which has a gravity of 0.38 compared to Earth, what is the first thing you need to do?
Multiply 3.8 x50kg
ACCELERATION OF AN OBJECT DEPENDS ON THE MASS OF THE POBJECT AND AMOUNT OF FORCE THAT IS APPLIED
NEWTON'S 2ND LAW OF MOTION
AN OBJECT AT REST STAYS AT REST, AND AN OBJECT IN MOTION STAYS IN MOTION
NEWTON'S 1ST LAW OF MOTION
TRUE or FALSE - AN EXAMPLE OF NEWTON'S SECOND LAW OF MOTION WOULD BE YOU SITTING ON A CHAIR AND TAKING THIS TEST.
FALSE
A measure of the force that gravity exerts on an object.
What is weight
What is the weight of a 25 kg ball?
245N
AN OBJECT IS SAID TO BE IN THIS WHEN IT TRAVELS AROUND OTHER OBJECTS IN SPACE
ORBIT
TRUE or FALSE - THROWING A BALL UP INTO THE AIR AND IT COMES DOWN AND BOUNCES ON THE GROUND, SHOWS AN EXAMPLE OF FREE FALLING
What is the force of gravity on earth
9.8
On which planet would your mass be the greatest?
Jupiter
Earth
Mars
None
None, mass stays the same.
What is Mr. Prentiss favorite food?
Pizza