Force
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Question 1 |
Force is a polar vector.
A | True |
B | False |
Question 2 |
A body is moving along a straight path. What will happen to the body in the absence of an external field?
A | It will stop |
B | It will move with the same speed in a different path |
C | It will move with the same speed along the same straight path |
D | It will move with a reduced speed along the same path |
Question 3 |
A person is standing in a bus. When the bus starts moving forward suddenly ___________
A | The person moves forward |
B | The person remains stationary |
C | The person is unaffected |
D | The person moves backward |
Question 4 |
When a moving bus suddenly stops, a person sitting ___________
A | Stands up |
B | Falls forward |
C | Falls backward |
D | Is unaffected |
Question 5 |
If a body has more mass, it had more inertia.
A | True |
B | False |
Question 6 |
Which of the following is also known as the law of inertia?
A | Newton’s second law of motion |
B | Newton’s third law of motion |
C | Newton’s first law of motion |
D | Aristotelian law of motion |
Question 7 |
When we shake the branch of a tree, its fruits and dry leaves fall down. This is an example of ___________
A | Inertia of motion |
B | Inertia of rest |
C | Inertia of direction |
D | Newton’s third law of motion |
Question 8 |
A ball thrown upward in a moving train does not come back into the thrower’s hand.
A | True |
B | False |
Question 9 |
A dog is chasing a hare and the hare runs in a zigzag path. What happens?
A | The dog becomes confused |
B | The dog catches the hare easily |
C | It becomes difficult for the dog to catch the hare |
D | The hare dies |
Question 10 |
The driver of a car suddenly sees a broad wall in front of him. What he should do?
A | Brake sharply |
B | Turn sharply |
C | Keep going |
D | Jump out of the car |
Question 11 |
Gravitational force is influenced by object's
A | weight |
B | shape |
C | size |
D | color |
Question 12 |
A person from parachute falls slowly to ground due to
A | Thrust |
B | Air resistance |
C | Friction |
D | Air friction |
Question 13 |
Friction acts in opposite direction and it can affect an object to
A | Slow down |
B | Stop |
C | Both a and b |
D | Speed up |
Question 14 |
The force of 'lift' on aeroplane acts upwards in direction of weight of plane which pulls it
A | Upward |
B | Downward |
C | Foreword |
D | Backward |
Question 15 |
The up thrust and weight act in
A | Same direction |
B | Opposite direction |
C | Upward |
D | Downward |
Question 16 |
Actions like squeezing, lifting and pressing needs
A | Pull |
B | Push |
C | Both a and b |
D | Energy |
Question 17 |
Weight is considered as
A | Energy |
B | Pull |
C | Push |
D | Weight |
Question 18 |
Gravitational force is defined as the force of attraction between
A | Two masses |
B | Three masses |
C | Magnets |
D | Two poles |
Question 19 |
The air resistance acts on plane in opposite of
A | Thrust |
B | Lift |
C | Weight |
D | Drag |
Question 20 |
The size of a force can be measured by
A | Force meter |
B | Spring balance |
C | Both a and b |
D | Thermometer |
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