Acceleration

Question 1

Define displacement

Answer 1

Displacement is a vector quantity that refers to “how far out of place an object is”; it is the object’s overall change in position.

Question 2

State Newton’s universal law of gravitation

Answer 2

force proportional to the product of masses inversely proportional to distance squared.

Question 3

When would an object moving at constant speed have an acceleration?

Answer 3

Following a circular path.

Question 4

State Newton’s laws of motion

Answer 4

• body at rest moves with constast velocity unless external force acts
• Force is proportional to rate of change of momentum
• Action and reaction are equa and opposite