Physics Basics Flashcards
Reference Frame
The POV you observe and measure things from- helps define the motion and position of an object.
Two people can have different reference frames of the same situation, observing the motion and position of the object differently.
Force is equal to…
Mass * Acceleration
F=ma
Force
Push or pull on an object
Net Force
The sum of all forces acting on an object
Acceleration
How much an object speeds up or slows down.
A larger net forces create a (smaller/ larger) acceleration
Larger
A larger mass needs a larger net force to have the same acceleration as a (smaller/ larger) mass?
Smaller mass
The amount of Gravitational Force between two objects depends on what 2 things?
- Distance
- Mass
Centripetal Force
A lateral (sideways) force from the snow that bends an edged ski, causing it to turn.
Makes a body follow a curved path
For every force, there is…
An equal and opposite reaction force.
A force and its reaction are…
Generated together
Happen at the same time
Gravitation force…
Pulls objects with mass toward each other.
The gravitation force between two objects is larger when…
The masses of objects are larger.
The further objects are from each other, the (stronger/ weaker) the gravitational force.
Weaker
Kinetic Energy
The energy any object with mass has if it is in motion.
An object’s kinetic energy is directly related to its…
Mass
If object A has twice as much mass as object B traveling at the same speed, Object A has how much kinetic energy in comparison to object B?
Twice as much
An object’s kinetic energy is directly related to what two factors?
Speed and Mass
If object A was traveling twice as fast as object B, then object A would have how much more kinetic energy compared to object B?
Four times the amount
What is the equation for kinetic energy?
Kinetic energy= 1/2mass *speed (squared)
KE= 1/2m*V (squared)
