P2 - 5.1 Contact + Non Contact Forces Flashcards
What are the main 2 types of forces
- contact
- non contact
What is a force
A push or pull that acts on an object due to its interaction with another object
What is force measured in
Newtons
True or False:
Forces have direction
True
What are forces classed as
Vector quantities
Why are forces classed as vector quantities
They have both force, magnitude and direction
What is the difference between a contact and non contact force
Contact has to be physically touching
Non contact dont require objects to be touching
Is friction contact or non contact force
Contact
Is air resistance contact or non contact force
Contact
Is tension contact or non contact force
Contact
Is the contact force, tension, a pulling or pushing force
Pulling
Is normal contact force a contact or non contact force
Contact
What are the 4 main types of contact force
- friction
- air resistance
- tension
- normal contact force
What is the normal contact force also known as
Reaction force
Scenario:
Rock on table
Describe the force
- The rock has a downwards force on the table which is its weight
- to stop the rock from moving the table has an upwards force that is equal and opposite
What is meant by the normal contact force
When a contact has an equal and opposite force
What are the 3 main types of non contact forces
- gravitational
- magnetic
- electrostatic
When talking about non contact forces what can we refer them to
Field of influence around an object because forces can act on anything in that surrounding area
True or False:
Gravity is a force between any two objects that have mass
True
Are magnetic forces attractive or repulsive
Both depending on which end the poles lay
Opposite = attract
Same = repel
What are electrostatic forces between
Charged objects
Is gravitational contact or non contact force
Non contact
Is magnetic contact or non contact force
Non contact
Is electrostatic contact or non contact force
Non contact
What will happen if you put a positive magnet and negative magnet end together
Attracts
What will happen if you put a negative magnet and negative magnet end together
Repel
What will happen if you put a positive magnet and positive magnet end together
Repel
What will happen as distance is increased between 2 non contact forces
Force will decrease/ become weaker
