Worksheetsnicole 1
Total questions: 24
Worksheet time: 25mins
What is gravity?
(a)
The _ of an object is due to the force of gravity on its mass.
(a)
What is mass?
(a)
Things are heavier in the moon than when it is in earth. True of False?
True
Falsse
Why are things heavier on earth than on the moon?
What is friction?
(a)
Friction produces (a) .
smoother surface means
(a)
rougher surface means
(a)
How do you increase friction?
(a)
The greater the mass of an object, the greater the pull of (a) on it
What is the reason the moon rotates around Earth?
friction
heat
mass
gravity
What is the force that attracts objects to each other?
mass
heat
friction
gravity
What does the law of conservation of energy state?
(a)
What is a simple machine?
What are the different kinds of a simple machine?
A (a) is a rigid bar that is free to move at a point called the fulcrum.
An (a) is a slanting or sloping surface.
A (a) is a double inclined plane. It looks like two inclined plane fastened back to back.
A (a) is an inclined plane wrapped around a cylinder
The (a) is a lecer that rotates in a circle around a center point or fulcrum
A (a) is a grooved wheel that turns on an axle, which is in turn mounted on a frame
What are the two forces acting on a machine?
ressistance and effort
ressistance and fulcrum
gravity and fulcrum
effort and fulcrum
In which situation is pulley most useful?
cutting meat
holding a piece of wood together
raising a flag
helping guide the sail on a sailboat
