Weight and Circular motion Flashcards
1
Q
What is Mass?
A
The amount of stuff in an object. Will have the same value anywhere in the universe.
2
Q
Is mass a scalar or vector quantity?
A
Scalar.
3
Q
What is Mass measured in?
A
Kilograms with a mass balance.
4
Q
What is Weight?
A
The force acting on an object due to gravity. Closer to earth, this force is caused by gravitational field around the earth.
5
Q
What is Weight measured in?
A
Newtons.
6
Q
What is the formula for weight?
A
Weight = Mass * Gravitational Field Strength.
7
Q
What is Circular Motion?
A
If an object is travelling in a circle, it is constantly changing direction, so it is constantly changing velocity. This means a resultant force must be acting on it.
8
Q
What is the force that keeps something moving in a circle called?
A
A centripetal force.
