Civel Engineer Flashcards
How do u improve the strength of a material
By using heat treatment or mixing to materials together
What is the strength of a material
How well a material resists a force such as weight
What is density
The mass per unit volume
How do u work out the density of things
D=m(g)/v(cm3)
What are some forces
Wind gravity friction air resistance tension applied normal Spring nuclear electromagnet magnetism
What do forces do to objects
Change things shape change things speed change things direction cause things to move
What is the difference between mass and weight
Mass is how much matter something is made of and it doesn’t change as the object moves around, but weight is how much force of gravity is acting on it and can change if the object moves around
What is friction
Friction is the force which exists between objects preventing them from sliding over each other
How do u reduce friction
U reduce mass(go on a diet)
