phy(types Of Force And Effect ) Flashcards
1
Q
what is force
A
a push or pull acting upon an object
2
Q
S.I unit of force
A
Newton(N)
3
Q
measuring instruments for force
A
Newton meter/spring balance
4
Q
effect of force
A
- forces can change the direction of motion of an object
- forces can speed up a motion
- forces can slow down a motion
- forces can start a motion
- forces can make an object rotate
- forces can change the shape of an object
5
Q
example of contact force
A
- applied force
- friction force
- air resistance
- tension force
6
Q
example of non-contact force
A
- gravitational force or weight
- magnetic force
- electric force
7
Q
what is applied force?
A
force applied to an object by another object or person
8
Q
does friction go opposite OR Same direction to the motion of object in contact?
A
opposite
9
Q
what is air resistance
A
special type of frictional force which acts upon objects as they travel through air
forces of air resistant always opposes the motion of the obejcts
10
Q
what is tension force?
A
forces that transmitted through a string,rope or wire when it is pulled tight by forces acting at each end
11
Q
what is magnetic force
A
the push or pull exerted by a magnet
