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- 1. Multiple ChoiceFluids can also include__ and__.solids and liquidssolids and gasesliquids and gasesliquids
- 2. Multiple ChoiceWhat is the equation used to calculate pressure?pressure= force/masspressure =mass/volumepressure=area/forcepressure=force/area
- 3. Multiple ChoiceWhat is the unit of measurement for pressure?pascalgramsmillitersmeters
- 4. Multiple ChoicePressure decreases when the surface area over which a force is applied increasesTrueFalse
- 5. Multiple ChoiceAtmospheric pressure increases as you move towards lower elevations and decreases as you move into higher elevations.TrueFalse
- 6. Multiple Choice
Look at the pressure triangle. How do we calculate the area?f ÷ af x pp x ff ÷ p - 7. Multiple ChoiceWhat is the instrument that measures air pressure called?Graduated cylinderBarometerForce scaleAnemometer
- 8. Multiple ChoiceWhat pressure does a 4000N horse exert on the ground if each foot is 10cm2?40 N/cm2100 N/cm2400 N/cm210 N/cm2
- 9. Multiple ChoiceIf the horse reared up on 2 legs what effect would it have on the pressure?it will exert half the pressure it did beforeit will exert the same pressure it did beforeit will exert twice the pressure it did beforeit will exert four times the pressure it did before
- 10. Multiple ChoiceArmy tank tracks are useful for travelling through the mud because..they decrease the force the vehicle exerts on the groundthey increase the force the vehicle exerts on the groundthey decrease the pressure the vehicle exerts on the groundthey increase the pressure the vehicle exerts on the ground
- 11. Multiple ChoiceWhich of these animals would probably cause the greatest pressure on the ground?A fat cow with big feetA fat cow with small feetA calf with big feetA calf with small feet
- 12. Multiple ChoiceWhere is pressure the greatest on the dam?DCBA
- 13. Multiple ChoiceWhat does pressure measure?StrengthForce exerted on a given area of surface
- 14. Fill in the Blank
name the instrument used to measure atmospheric pressure ?
- 15. Multiple Choice
In Fig two boys A and B are shown applying force on a block. If the block moves towards the right, which one of the following statements is correct?
Magnitude of force applied by A is greater than that of B
Magnitude of force applied by A is smaller than that of B.
Net force on the block is towards A.
Magnitude of force applied by A is equal to that of B.
- 16. Multiple Choice
During dry weather, while combing hair, sometimes we experience hair flying apart. The force responsible for this is___________
force of gravity
electrostatic force.
force of friction.
magnetic force
- 17. Multiple Choice
A brick is kept in three different ways on a table as shown in Fig. The pressure exerted by the brick on the table will be
maximum in position A
maximum in position B
maximum in position C
equal in all cases.
- 18. Multiple Choice
which force is non contact force
gravitational
magnetic
electrostatic
all of the above
- 19. Open Ended
write two states of motion .
- 20. Fill in the Blank
what kind of force is Friction
- Answer choicesTagsAnswer choicesTags