Gravity Flashcards
What is the equation for weight?
Weight= Mass x Gravitational field strength
What is the equation for mass in terms of gravitational field strength and weight
Mass= weight/gravitational field strength
What is the equation for gravitational field strength in terms of weight and mass
Gravitational field strength= Weight/** mass**
What are the units for mass?
Kilograms, Kg
must ALWAYS be Kg in physics, if not, CONVERT it into Kg
What is unit for weight
Newtons, N
What is the unit for gravitational field strength?
Netwons/Meter, N/Kg
Define mass
Mass is the amount of matter in an object
Weight is directly proportional to gravity and mass what does this mean?
When either the gravity or mass increase the weight increases
The same goes for if either one decreases
What will happen to the mass of an object when it moves from earth to a different place?
It will stay the same
What will happen to the gravitational field strength ON an object when it moves from earth to a different place?
The gravitational field strength will change
What will happen to the weight of an object if it is moved from earth to a different plae?
The weight will change
What is the gravitational field strenght on Earth?
9.8 Netwons/Kilograms
(N/kg)
How do you write the weight is directly proportional to mass?
- write W ∝ M
- THEN write W= k x M
NEVER skip the first step or you WON’T get the mark!!!
How many grams in 1Kg?
1000g in 1Kg
How many Kg in 1Mg
Mg= Megagram
Well K= 10^3
M=10^6
so 1Mg is 1000Kg
