10.1 forces and acceleration

Question 1

inertia def

Answer 1

the tendency of an object to stay at rest or to continue in uniform motion

Question 2

what does newton’s second law state?

Answer 2

f=ma so the acceleration of an object is
- proportional to the resultant force on the object
- inversely proportional to the mass of the object

Question 3

what is the inertial mass of an object

Answer 3

a measure of the difficulty of changing the object’s velocity

Question 4

inertial mass equation

Answer 4

force/acceleration

Question 5

when does an object accelerate

Answer 5

if the resultant force is the same direction as the velocity

Question 6

when does an object decelerate

Answer 6

if the resultant force is in the opposite direction to its velocity