Chap 34: Force Flashcards
1
Q
What is force?
A
Something that causes an object to move or change its velocity
2
Q
What is the unit of force
A
N newtons
3
Q
What is force measured with?
A
Spring balance/ Newton meter
4
Q
What is Hooke’s law?
A
The extension of the string is directly proportional to the force that is stretching it
5
Q
Friction
A
A force which prevents easy movement between two objects in contact
6
Q
Disadvantages of friction
A
Slows things down Wastes energy( sound and heat) Wears away surfaces in contact with each other eg. Soles of shoes
