Newton's 1st and second law
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12 Terms
What is Newton’s first law
A force is needed to make an object move or change how it moves
What happens if the resultant force is 0 on a stationary object
Object remains stationary
What happens if the resultant force is 0 on a moving object
Carries on moving at the same velocity
What is Newton’s Second law
the bigger the force on an object, the bigger its acceleration
(Newton’s second law) What happens when the initial motion is stationary
Start moving
What is the formula for accelaration
change in velocity/change in time
What is circular motion
When something moves in circles rather than straight lines
What is the other part of Newton’s Second law
Size of resultant force is directly proportional to the accelaration it causes
What is the equation of resultant force
Mass x acceleration
What is inertia
The natural habit of an object to keep moving the same way or stay still
What is inertial mass
How difficult it is to change an object’s velocity
What is the equation for inertial mass
Force/ acceleration
