First Law - Balanced Forces Means No Change in Velocity

Question 1

What is the first law?

Answer 1

So long as the forces on an object are all balanced, then it’ll just stay still, or else if it’s already moving it’ll just carry on at the same velocity - so long as all the forces are balanced

Question 2

If anything is moving at a constant velocity, what must the forces be?

Answer 2

Must all be balanced

Question 3

Do things need a constant overall force to keep them going?

Answer 3

No

Question 4

What must objects have to keep going at a steady speed?

Answer 4

A zero resultant force