Weight And Circular Motion Flashcards
1
Q
What is the difference between mass and weight?
A
Mass is the amount of stuff in an object . It’s scalar, it’s measured in kg
Weight is the force acting on the object due to gravity , measured in Newton’s, from a single point it’s centre of mass, it’s measured using a spring balance
2
Q
How do you work out weight?
A
Weight = mass x gravitational field strength
3
Q
What is circular motion?
A
It is when an object is travelling in a circle it is constantly changing direction so it is changing velocities , this means it’s accelerating. This means there is a resultant force acting upon it this is called the centripetal force.
