Topic 2 - Newton’s Laws 👩⚖️🚨 Flashcards
1
Q
What is Newton’s First Law?
A
Velocity of an object only changes if there is a resultant force.
2
Q
If the resultant force is 0 then…
A
Object is moving at a constant velocity
OR
Object is stationary
3
Q
What is Newton’s Second Law?
A
The acceleration of an object is directly proportional to the resultant force acting on it
4
Q
What is Newton’s second law as an equation?
A
F (N) = m (kg) x a (m/s²)
5
Q
What is inertial mass?
A
How difficult it is to change an object’s velocity
6
Q
What law is F = (mv - mu) / t ?
What does it mean?
A
Newton’s second law
Force = change in momentum / time
7
Q
What is Newton’s third law?
A
The forces on interacting objects are equal and opposite
