Question

paper.
Tick () the correct options.
1. A dolphin swimming in the sea experiences
fluid friction.
sliding friction.
static friction.
rolling friction
2. If a girl sitting halfway on a slide does not slide down, it could be because of
gravity. o height.
friction
weight
3. The surface on which a toy car pushed with the same force travels the furthest is
bedsheet.
glass.
grass.
4. Applying grease to the hinges of a door
increases friction.
reduces friction.
keeps friction constant.
increases the weight.
5. A smooth surface offers
no friction.
less friction. &
more friction. more heat.
6. The frictional force exerted by fluids is also called
o motion.
pressure. drag.
lubricant.
​

Answer 1

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Explanation:

1.fluid friction

2.o height

3. glass

4.increases friction

5. more friction more heat

6.lubricant