Completion type: Fill in the blanks with correct answers. <word or terms>
Choices:
Work f. speed
Malleable g. increases
Decreases h. elastic
Ductile i. speed
Potential j. depth
1.As a body falls from a certain height its velocity _______________________.
2. The more _________ a solid is, the greater force is needed to deform it.
3.No ________ is done on a body, if the displacement is perpendicular to the direction of force.
4.The greater the ____________ of a liquid, the grater is the pressure it exerts.
5.Gold is ___________ because it can be hammered into very fine sheets without breaking
6.Copper is __________ because it can be drawn into very fine sheets without breaking
7.A raised hammer has __________ energy.
8.As a body rises up, its velocity _____________.
9.Kinetic energy is energy in ______________.
10.The greater the air friction, the less is the ___________ of a body falling from a certain height
1. As the body fall from a height it's potential energy converts into kinetic energy hence veloctiy is increased.
answer- increased.
2. Elastic
3. Work done on a particle is given by
or
if
displacement is perpendicular then theta will be 90 degrees and
cos90 is zero. Hence no work done
answer - work
4. pressure of a liquid is given by when
height / depth increase pressure also increase.
answer- depth
5. Malleable
6. Ductile
7. Potential
8. Decreases
9. Speed
10. Speed
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