Question

A. Tick the most appropriate answer.
1. The turning effect of a force is known as
a. work.
b. energy
moment.
d. pressure
2. What is the pressure exerted by a body of weight 200 N acting on an area of 5 m??
a. 50 Pa
b. 200 Pa
C. 40 Pa
d. 0.02 Pa
3. What is the value of one pascal?
a. 1 N°/m2
b. 1 N/m2
c. 1 N/m
d. 1 N/m
4. Army tanks are provided with caterpillar tracks under their wheels in order to
a. decrease pressure on the ground.
b. increase pressure on the ground.
c. make them look different.
d. prevent them from damage.
5. Pressure in liquids is measured by an instrument called
a. barometer
b. hydrometer.
c. odometer.
d. manometer.
6. The value of atmospheric pressure at sea level in SI system is approximately equal to
a. 1000 Pa.
b. 10000 Pa.
c. 100000 Pa.
d. 10000000 Pa.
7. At sea level, the height of the mercury column in a barometer is
a. 72 cm.
b. 76 cm.
C. 82 cm.
d. 98 cm.​

Answer 1

1 - moment
2 - 40 Pa
3 - 1 N/m^2
4 - decrease the pressure on the ground
5 - manometer
6 - 10000000 pa
7 - 72cm


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