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WorksheetsScience - Energy: Forces
Total questions: 10
Worksheet time: 50mins
When an object is falling there are two forces acting on it. These are gravity and air resistance.
True
False
All objects have gravity.
True
False
The force that keeps us on the ground is called ......
air resistance
speed
gravity
electricity
The bigger the objects ........
the stronger the gravity
the smaller the gravity
The moon's gravity is bigger than that of Earth?
True
False
Air resistance is the force air exerts on a moving object.
True
False
The greater the area of the object ........
the smaller that air resistance
the bigger the air resistance
If I drop two A4 papers, one is crumpled and one is flat. Which one will reach the floor first?
the flat
the crumpled
Leaves, papers and feathers have a greater surface area compared to acorns, pens and glasses. This causes them to have greater air resistance which slows them down.
True
False
Why are bullets, jet planes and Formula 1 cars designed with a pointed front?
So that they can move swiftly through the air.
So that they do more damage when they hit something.
To increase air resistance on them.
So that they go slower.
