Quiznetik
Force and Pressure | Set 1
1. A push or pull on an object is called
A. Pressure
B. Push-pull
C. Force
D. All of the above
Correct : C. Force
2. If two forces act in the opposite directions on an object, the net force acting on it is the
A. Sum of the two forces
B. difference between the two forces
C. Multiplication of the two forces
D. Division of the two forces
Correct : B. difference between the two forces
3. Which of the following is proper example(s) to explain that force on an object may change its shape
A. A ball of dough rolled into chapati
B. Pressing a rubber ball kept on table
C. Making model using clay
D. All of the above
Correct : D. All of the above
4. A ball rolling on the ground slows down and finally stops. This is because of
A. Force
B. Less force applied
C. Friction
D. None of the above
Correct : C. Friction
5. Force of friction always acts on moving objects and its direction shall be ____
A. On any direction
B. Along the direction of motion
C. Perpendicular to the direction of motion
D. Opposite to the direction of motion
Correct : D. Opposite to the direction of motion
6. If In a tug-o-war, two teams pulling a rope does not move towards any team, it implies that
A. Equal force is being applied in the same direction
B. Equal Force is being applied in opposite direction
C. No force is applied in any direction
D. Cannot be explained
Correct : B. Equal Force is being applied in opposite direction
7. An example of a non- contact force is
A. Force exerted by us to lift a bucket
B. Push a stationary car
C. Force exerted by magnet
D. Hit a cricket ball for a 6 run
Correct : C. Force exerted by magnet
8. Pressure =
A. Area / force on which it acts
B. force / area on which it acts
C. Volume / force on which it acts
D. Force / volume on which it acts
Correct : B. force / area on which it acts
9. Gravity is
A. Repulsive
B. Attraction + Repulsive force
C. Attractive force
D. Not a force
Correct : C. Attractive force
10. A batsman hits the ball for a boundary past the bowler i.e. four runs. The batsman thus
A. Changes the direction & speed of the ball
B. Does not change the direction but speed only
C. Does not change the speed but direction only
D. Does not change either direction or speed
Correct : A. Changes the direction & speed of the ball