Question

1a. Define the following terms:
A. Biotic factor
B. Abiotic factor
1b. Give five examples of biotic factor and abiotic factor

2a. define each of the following terms:
A. friction
B. Force of gravity
2b. State Newton's first law of motion.
2c. Name five major types of forces in science.
2d. State three examples of liquids that are less viscose and two examples of liquids that are more viscose.

3. Briefly summarized in four statements Dalton's atomic theory
Statements 1-4 of Dalton's atomic theory were modified. Make a line of statements each about the modification.

Answer 1

Answer:

1a

A)All living organism in a environment are called as biotic factor.

B. All non living factors in a environment are called as abiotic factor.

1b.biotic: plants ,animals, birds,fungi, bacteria, etc

Abiotic: air ,water,gases,sunlight, soil,etc.

2a.

A. friction: friction is the force that oppose the relative motion between the two surface of object in contact.

B. force of gravity:the force with which earth attract the object towards itself is called gravitational force.

2b.

'An object continues to remain at rest or in a state of uniform motion along a straight line unless an external unbalanced force acts on it.'

2c.

1.Applied force

2.Gravitational force

3. Norma force

4.frictional force

5.air resistance force

2d

more viscose liquid: Honey, glue,resins,turpentine.

less viscose liquid: water,kerosene, petrol, thinner.