What does a horizontal line on a velocity-time graph tell you?
Back
Card 7
Front
Friction opposes the movement of a book across a table. A person pushes against the side of the book to make it slide along the table. describe the forces acting on the book at the point it starts to move.
Back
Card 8
Front
If the resultant force acting on a moving object is zero what will happen to its motion?
Back
Card 9
Front
If the resultant force acting on a moving object is not zero, what will happen to its motion?
Back
Card 10
Front
Name the main force acting against the motion of a car.
Back
Card 11
Front
When a car is moving at a steady speed how does air resistance compare with the driving force?
Back
Card 12
Front
Why are heavy objects much harder to slow down or change direction?
Back
Card 13
Front
what is the gravitational potential energy?
Back
Card 14
Front
Why do objects have gravitational potential energy?
Back
Card 15
Front
A window cleaner with with a mass of 70 kg climbs to a height of 5 m on his ladder. How much GPE does he gain?
