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- 1. Multiple Choice
_____________ is the amount of force pushing on a certain area.
weight
mass
pressure
- 2. Multiple Choice
If you keep the size of the force the same, for a large area, the pressure will be ________
higher
lower
same
- 3. Multiple Choice
Which formula is used to calculate pressure?
pressure = force x area
- 4. Multiple Choice
What is the unit of pressure?
newton
joules
pascal
- 5. Multiple Choice
If you keep the area the same, for a larger force, the pressure will be _________
lower
higher
same
- 6. Multiple Choice
All stationary (Still) objects have __________ forces on them.
unbalanced
balanced
high
- 7. Multiple Choice
If forces on an object are unbalanced, it will _______
make the object to move or change direction.
make it move at same speed.
it will remain still.
- 8. Multiple Choice
Forces acting on an object are said to be balanced, when
the forces are equal in size and are acting in opposite direction.
the forces are equal in size and are acting in same direction.
the forces are different in size and are acting in opposite direction.
- 9. Multiple Choice
The head of an arrow represent the __________ of force.
strength
length
direction
- 10. Multiple Choice
The sum of all forces acting on an object is called
unbalanced force.
balanced force.
resultant force.
- 11. Multiple ChoiceWhat is the equation used to calculate pressure?pressure= force/masspressure =mass/volumepressure=area/forcepressure=force/area
- 12. Multiple ChoiceWhat is the unit of measurement for pressure?pascalgramsmillitersmeters
- 13. Multiple ChoicePressure decreases when the surface area over which a force is applied increasesTrueFalse
- 14. Multiple Choice
Which of the statements is true?The bottom of the boot exerts more pressure than the shoe as a result of an increase in surface area.The bottom of the shoe exerts more pressure than the boot as a result of an decrease in surface area.The bottom of the shoe exerts the same pressure as the bottom of the boot. - 15. 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
- 16. 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
- 17. Multiple ChoiceHow can you get these pistons to balance?Put equal masses on both sidesPut heavier mass on the left pistonThey will never balance because one is fatter than the otherPut a heavier mass on the right piston
- 18. Multiple ChoiceHow would you calculate the force to be used on a brake of area 0.5cm2 if the slave cylinder has a 4cm2 area and needs 800N to stop the car.4 x 800 x 0.5800/0.5 x 40.5 x 4 x 800800 x 0.5 /4
- 19. 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
- 20. Multiple ChoiceLook at the pressure triangle. How do we calculate the area?f ÷ af x pp x ff ÷ p
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