Our Dynamic Universe 2 Flashcards
What is newtons 1st law
An object will remain at rest or will continue to move in a straight line with a constant speed until acted on by an unbalanced force
When are forces balanced
When the forces acting are equal and opposite to each other
What does balanced forces mean
The object remains at rest or at a constant speed
What is Newton’s second law
A uniform unbalanced force acting on a mass will produce a uniform acceleration
What is the apparent weight
The reading on the scales during an acceleration
When the lift is moving at a constant speed the person experiences …
There true weight
When the lift is accelerating upwards the person experiences …
(Same as decelerating downwards) bigger apparent weight
When the lift is accelerating downwards the person experiences …
(Same as decelerating up) smaller apparent weight
What happens in the energy change down a slope
The potential energy is converted into kinetic energy
