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.
2.) ASSERTION: When we push an object like a school bag or lift a bucket of water where does the force come.
REASON : This force is caused by the action of muscles in our body. The force resulting due to the action of muscles is known as
the muscular 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.
3.) ASSERTION :When we stop pedaling a bicycle, it gradually slows down and finally comes to a
REASON :No force appears to be acting on the object yet their speed gradually decreases and they come to rest after some time .
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.
4.) ASSERTION :while taking a penalty kick in football, the player applies a force on the ball and ball move toward the goal.
REASON: The goalkeeper try to save the goal and therefore he apply force to stop the ball.
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.
5.) ASSERTION : Does the magnet on the rollers begin to move when the other magnet is brought near it. Does it always move in
the direction of the approaching magnet
REASON :We know that like poles of two magnets repel each other and unlike poles attract each other. Attraction or repulsion
between objects can also be seen as another form of pull or push.
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.
6.) ASSERTION :When the coin is held in your hand it is at rest. As soon as it is released, it begins to move downwards. It is clear
that the state of motion of the coin undergoes a change.
REASON :Objects or things fall towards the earth because it pulls them. This force is called the force of gravity, or just gravity.
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.
Q.1. Assertion: A potter makes pots of different sizes and shapes from kneaded clay.
Reason: Force may bring about change in the size or shape of an object.
Q.2. Assertion: When same force is applied for same time, to both car and truck. The car picks up a greater speed
than truck in that time.
Reason: The magnitude of force needed depends on the mass of object and value of change of speed.
Q.3. Assertion: In tug a war, when both the teams pull the rope, with equal and opposite force the rope will remain
stationery.
Reason: The unequal force may not bring about change in state of rest.
Q.4. Assertion: A ball rolling along the ground, gradually slows down and finally comes to rest.
Reason: This happens due to force of friction between the ball and the ground.
Q.5. Assertion: As we move to higher altitudes, breathing can become difficult.
Reason: At higher altitude there is decrease in the atmospheric pressure.
Q.6. Assertion: We can drink cold drink from a bottle with help of straw.
Reason: The pressure inside the straw is more than the pressure outside.
Q.7. Assertion: It is difficult to carry a bag with narrow straps as compared to carry the same bag with broader strap.
Reason: When the same force acts over a small area its effect is more.
Q.8. Assertion: Falling of rain drops is a contact force.
Reason: Gravitational force is an example of contact force.
Q.9. Assertion: Pressure = force /area
Reason: P =Force /area, here F force is thrust.
Q.10. Assertion: Force can be added in pressure.
Reason: Force and pressure has same magnitude.
Q.11. Assertion: Pressure cookers are fitted with ebonite handles.
Reason: Ebonite is strong.
