object interaction Flashcards
1
Q
what is gravitational attraction
A
gravitational attraction which is when there is an attraction between two objects with mass, the larger mass gives greater attraction
2
Q
what is electrostatic attraction/repulsion
A
A Larger charge gives greater force
and like charges repel, opposite charges attract
3
Q
what is magnetic attraction/repulsion
A
A stronger magnet gives stronger field, having a greater force so like poles repel, opposite poles attract
4
Q
what are examples of interactions of objects at a distance without contact
A
- gravitational attraction
- electrostatic attraction/repulsion
- magnetic aatraction/repulsion
5
Q
what are some examples of interaction of objects with contact
A
- normal contact force
* friction
6
Q
what is normal contact force
A
the force that is perpendicular to the plane of contact
7
Q
how does friction occur
A
when surfacses that are rough cause friction when moved
