# Chapter 10: Forces Effects - Science Mcqs for Grade 7 - Set 2

1)   The upward push acting on object which is immersed in liquid or gas partially or totally, is called

a. gravity
b. mass
c. weight
d. upthrust
 Answer  Explanation ANSWER: upthrust Explanation: No explanation is available for this question!

2)   We write on a board with chalk without slipping on floor is due to the presence of

a. gravity
b. friction
c. pull
d. push
 Answer  Explanation ANSWER: friction Explanation: No explanation is available for this question!

3)   The force of attraction between two masses is called

a. gravitational force
b. friction
c. pull
d. push
 Answer  Explanation ANSWER: gravitational force Explanation: No explanation is available for this question!

4)   The earth pulls object towards center, causing it to fall

a. in the center
b. on the ground
c. on the polls
d. on the floor
 Answer  Explanation ANSWER: in the center Explanation: No explanation is available for this question!

5)   The dead sea is full of

a. sand
b. salt
c. minerals
d. shells
 Answer  Explanation ANSWER: salt Explanation: No explanation is available for this question!

6)   Density has 'SI' unit which is

a. kilogram per cubic meter
b. gram per cubic meter
c. meter per kilogram
d. meter per cubic meter
 Answer  Explanation ANSWER: kilogram per cubic meter Explanation: No explanation is available for this question!

7)   In systemic diagram, force can be represented by an

a. arrow
b. plus
c. dot
d. star
 Answer  Explanation ANSWER: arrow Explanation: No explanation is available for this question!

8)   Shapes and sizes of objects can be changed by the help of

a. force
b. energy
c. heat
d. light
 Answer  Explanation ANSWER: force Explanation: No explanation is available for this question!

9)   If an object is at rest, the forces acting on it, are

a. balanced
b. unequal
c. higher
d. lower
 Answer  Explanation ANSWER: balanced Explanation: No explanation is available for this question!

10)   A frictional force acting on an object when it moves through air is called

a. air resistance
b. water resistance
c. air pressure
d. air condensation
 Answer  Explanation ANSWER: air resistance Explanation: No explanation is available for this question!

11)   A force which opposes motion is known as

a. friction
b. gravity
c. pull
d. push
 Answer  Explanation ANSWER: friction Explanation: No explanation is available for this question!

12)   Force can be measured by the help of

a. foci meter
b. spring balance
c. pane balance
d. both a and b
 Answer  Explanation ANSWER: both a and b Explanation: No explanation is available for this question!

13)   Force can make a stationary object to

a. move
b. rotate
c. spin
d. still
 Answer  Explanation ANSWER: move Explanation: No explanation is available for this question!

14)   Forces can easily change the

a. direction of an object
b. gravity of an object
c. density of an object
d. volume of an object
 Answer  Explanation ANSWER: direction of an object Explanation: No explanation is available for this question!

15)   The gravitational force which acts on a body, is called

a. mass
b. weight
c. size
 Answer  Explanation ANSWER: weight Explanation: No explanation is available for this question!

16)   Forces cancel each other's effect if their size is

a. equal
b. unequal
c. same
d. all of them
 Answer  Explanation ANSWER: equal Explanation: No explanation is available for this question!

17)   The 'SI' unit of force is

a. watt
b. joule
c. newton
d. kilogram
 Answer  Explanation ANSWER: newton Explanation: No explanation is available for this question!