SALMIYA INDIAN MODEL SCHOOL, KUWAIT
Academic Session: 2022-2023
                                  Worksheet
Subject: Science                                   Chapter-Force & Pressure
Class: VIII
                                            Fill in the Blanks
      1.   To draw water from a well we have to _____________ the rope.
      2.   The ____________ of an object is the measure of force of gravity produced on it.
      3.   The force exerted by our muscles is called ______________.
      4.   Pressure exerted by air around us is known as ________________.
                                    Match the Following
      5.   A) Force                   (i) Contact force
           B) Pressure                (ii) Measure if gravity on an object
           C) Friction                (iii) Force per unit area
           D) Gravity                 (iv) Push and Pull
           E) Weight                  (v) Action at a distance force
                                            Short Questions
      6.   While sieving grains, small pieces fall down. Which force pulls them down?
      7.   How do fluids exert pressure?
      8.   A force of 100 N is applied on an area of 4 m2. Compute pressure being applied
           on the area.
      9.   State the difference between contact force and non-contact force.
                                            Hots
      10. Why it is easier to walk on soft sand if we have flat shoes rather than shoes with
          sharp heels?
      11. It is difficult to cut cloth using a pair of scissors with blunt blades. Explain.
      12. Observe the figures given below carefully.
 Volume of water in each vessel is shown above. Arrange them in order of decreasing
 pressure at the base of each vessel. Explain the reason.
                        Assertion Reason Questions
13. ASSERTION: the motion imparted to objects was due to the action of a force.
REASON: In science, a push or a pull on an object is called a force.
a) Assertion and reason both are correct statement and reason is correct explanation
for assertion.
b) Assertion and reason both are correct statement and reason is not correct
explanation for assertion.
c) Assertion is correct statement but reason is wrong statement.
d) Assertion is wrong statement but reason is correct statement
14. ASSERTION: Fluid exerts pressure on the walls of container.
REASON: Fluids have definite shape and size.
a) Assertion and reason both are correct statement and reason is correct explanation
for assertion.
b) Assertion and reason both are correct statement and reason is not correct
explanation for assertion.
c) Assertion is correct statement but reason is wrong statement.
d) Assertion is wrong statement but reason is correct statement.