Inertia and Newton's Third Law Flashcards
1
Q
What is inertia?
A
The tendency to keep moving with the same velocity.
2
Q
What does an object’s inertial mass measure?
A
How difficult it is to change the velocity of an object.
3
Q
How can you find the inertial mass?
A
Using Newton’s Second Law:
m = F ÷ a
inertial mass (kg) = Force (N) ÷ acceleration (m/s²)
4
Q
What does Newton’s Third Law state?
A
When two objects interact, the forces they exert on each other are equal and opposite.
5
Q
If the forces on two objects are equal and opposite, why does one object usually accelerate more than the other?
A
One object will accelerate more than the other if it has a smaller mass (a = F ÷ m). Acceleration is inversely proportional to mass.
