P1.1.4 - Forces at a Distance Flashcards
What is weight?
The force that an object (or person) pushes into the Earth as a result of gravity.
The invisible regions around object that exert non-contact forces are called…
force fields
Why do yuo weigh less on the moon?
Because the moon has a smaller gravitational field strength.
You cannot have weight without…
gravity
What is the equation for calculating weight on any planet/moon?
Weight (N) = Mass (Kg) x Gravitational Field Strength (N/Kg)
What is mass?
The amount of ‘stuff’ that an object is made from.
Mass is measured in…
Kilograms (Kg)
What happens to the strength of a force field when you move away from it?
It weakens
Weight is measured in…
Newtons (N)
Is mass a force?
No
What are the names of the 3 types of force field?
Magnetic fields
Gravitational fields
Electrostatic force fields
Name the 3 non-contact forces.
Magnetism
Gravity
Electrostatic force