ODU : Forces, Energy and Power

Question 1

Newtons 1st Law

Answer 1

An object will remian at rest or move at a constant speed in a straight line unless acted on by an unbalanced force

Question 2

Newtons 2nd Law

Answer 2

When the forces acting on an object are unbalnced, the object will accelerate in the direction of the unbalanced force

Question 3

Newtons 3rd Law

Answer 3

If an object A exerts a force on object , then object B will exert an equal but opposite force on object A.

Question 4

Terminal Velocity

Answer 4

For an object in free-fall, a constant speed is reached when the upward force on the object (air resistance) is balanced by the downward force on the object (weight).

Question 5

Law of conservation energy

Answer 5

Energy cannot be created or destroyed but can change from one form to another