WorksheetsPHYSIC CONCEPT CHAPTER1-3
Total questions: 10
Worksheet time: 8mins
v =k mFι
v = kιmF
v = kιFm
v =kmFι
Which statement about the force acting on the car is *not* true ?
A nett force acts on the car during interval P.
No nett force acts on the car during interval Q.
Opposing forces may be acting on the car during interval Q.
The magnitude of the nett force acting during interval P is less than that during interval R.
A bus is moving at a constant velocity of 20 m/s . Just as the bus passes a stationary car , the car starts to accelerate at 2.0 m/s². What is the distance travelled by the car when it overtakes the bus ?
100 m
200 m
300 m
400 m
A stone is projected vertically upwards from the top of a building. Which graph shows the variation of the displacement , s , of the stone with time , t ?
The nett force on an object moving in a straight line on a frictionless surface suddenly becomes zero. The object will then
stop instantly
require a short time to stop
slow down gradually
move at constant velocity
The particle P moves with constant velocity and collides head on with particle Q which is stationary. After the collision , both particles move with the same velocity . Which statement is true about the collision ?
The increase in momentum of particle Q is equal to the decrease in momentum of particle P.
The increase in kinetic energy of particle Q is equal to the decrease in kinetic energy of particle P.
The total kinetic energy after the collision of particle P and Q is bigger than total kinetic energy before the collision.
The force acted by particle Q on particle P is less than the force acted by particle P on particle Q during the collision.
An object of mass 0.35kg is pulled from rest along the rough surface of a table by a horizontal force of 5.0N. If the velocity of the object is 4.0m/s after it moves 1.2m, what is the coefficient of friction between the object and the surface of the table ?
0.05
0.78
1.41
2.14
A body is launched vertically upwards from ground level. The body attains a maximum height and then falls back to the ground . If the air resistance is negligible , which of the statements below is *not true* about the motion of body in air?
The average velocity of the body is zero.
The change of linear momentum of the body is zero.
The velocity of the body is zero at the maximum height.
The initial velocity is not same to the final velocity .
A body is launched vertically upwards from the ground. It reaches a maximum height and then falls back to the ground . If the air resistance can be neglected , the physical quantity which remains constant throughout the whole journey is
Force
Velocity
Momentum
Kinetic energy
