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Physics 9 Chapter 6 - Work and Energy - 1
1.
When a force acts on a body and moves it in the direction of the force, what is done?
a) Efficiency
b) Energy
c) Power
d) Work
2.
If the force acting on a body is greater, then which of the following is true?
a) The work done by it will be smaller
b) The force will go waste
c) The distance moved by it will be larger
d) The distance moved by it will be smaller
3.
What is the product of force F and displacement S in the direction of force called?
a) Efficiency
b) Power
c) Energy
d) Work
4.
What is work?
a) Product of force and displacement
b) Sum of velocity and displacement
c) Sum of force and displacement
d) Product of velocity and displacement
5.
What is the formula of work?
a) Work done = Force + displacement
b) Work done = Force x displacement
c) Work done = Force / displacement
d) Work done = Force - displacement
6.
What is the mathematical formula of work?
a) W = F + S
b) W = F x S
c) W = F - S
d) W = F / S
7.
F
x
and F
y
are the ...........................components of Force F?
a) Parallax
b) Horizontal
c) Perpendicular
d) Parallel
8.
Which of the following formula is true for F
x
?
a) F
x
= F cos θ
b) F
x
= F sin θ
c) F
x
= F tan θ
d) F
x
= F cot θ
9.
What are the perpendicular components of Force F?
a) F
x
, F
z
b) F
z
, F
y
c) F
z
, F
p
d) F
x
, F
y
10.
Which of the following formula is true for F
y
?
a) F
y
= F cot θ
b) F
y
= F cos θ
c) F
y
= F tan θ
d) F
y
= F sin θ
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