Dynamics 1 Flashcards
What is a Force?
A force is a push or a pull due to interaction between
objects to explain changes in motion
How do forces affect objects?
Forces can slow down, start, stop, speed up and change the direction of objects
What is a Contact Force?
Forces that exists between objects in contact
Examples of Contact Forces
Friction, Air Resistance, Normal Force, Tension
What is a Non-Contact Force?
Forces that do not require objects to be in contact to exist
Examples of Non-Contact Forces
Gravitational force, Electrostatic force, Magnetic force
What is Mass?
Measure of the amount of matter in a body that doesn’t change with location
How to Measure Mass?
Beam Balance
What is Weight?
Gravitational force acting on an object that has mass that changes with location
How to Measure Weight?
Spring balance/electronic balance
What is a Gravitational Field?
A region where mass experience a force due to gravitational attraction
Where is the Gravitational Field the Strongest?
Earth’s surface
