chapters 1,2,3 & 4

6. before using the vernier cslipers, we need to examine the instrument for _________.
7. if the resultant force acting on an object is zero, we say the forces acting on the object are ________.
8. it is 10 to the power of negative 3
10. it refers to the reluctance of the object to change its state of rest or motion, due to its mass.
11. newton's _____ law of motion states that every object will continue in its state of rest or uniform motion in a straight line unless a resultant force acts on it.
13. a physical quantity that has both magnitude and direction.
14. air resistance is a __________ force.
17. mass divided by volume
19. a physical quantity that has magnitude only.
20. a quantity that can be measured, and consists of a numerical magnitude and a unit

1. it is the distance moved per unit time.
2. it is the rate of change of desplacement.
3. it is the gravitational force acting per unit mass.
4. also known as constant speed.
5. it is the rate of change of velocity.
9. if the resultant force scting on an object is not zero, we say the forces acting on the object are __________.
12. an object whose velocity decreases over time.
14. the contact force that opposes or tends to oppose motion between surfaces in contact.
15. newton's third law ensures ___________.
16. SI unit:kg
18. has a precision of 0.01cm.