NEW
Font size
WorksheetsETS TRIAL DP014_SET B_20202021
Total questions: 20
Worksheet time: 10mins
“A man of mass 55 kg runs at 5 m s-1 towards North along the road.” The numerical value shows ......
one scalar and one vector quantity
two vector quantities
two scalar quantities
one derived and one basic quantity
Which of the following displacement-time graphs represents an object moving with constant velocity?
A car traveling at a speed of 40 km h-1 to North, then turns to West without changing its speed. Which of the following statements is TRUE?
The car is accelerating
The car is decelerating
The car is not accelerating
The car stopping
A ball that is thrown vertically from the Earth’s surface will reach a maximum height and then falls back to the Earth. If the air resistance is negligible, the physical quantity which remains constant during the motion of ball is ……
velocity
impulse
acceleration
kinetic energy
Object P is smaller in mass than Q. They can have the same magnitude of momentum if
P moves faster than Q
Q moves faster than P
Q and P have same speed
Q and P have same acceleration
The principle of conservation of linear momentum is p=mv = constant depends on the followings statements EXCEPT
Total momentum in a closed system remains constant.
When the net external force on a system is zero, the total momentum of that system is constant.
When there are no external forces acting on the system, the total momentum before collisions equals the total momentum after collisions.
When the total momentum of the two spheres before collisions equals the total momentum after collisions, the momentum is not conserved.
A man is standing in an electric lift that is moving up to the 15th floor of a building with constant velocity. The reaction experienced by the man is ……
less than his weight
same as his weight
more than his weight
weightlessness
Which of the following statements relating to Newton’s third law of motion is NOT CORRECT?
The two forces must be the same type.
The two forces must act on two different bodies.
The two forces must always opposite in direction.
The bodies are in equilibrium.
Which of the statements is NOT RELATED to the three Newton’s laws?
The total force on an object is zero if the velocity of the object is constant.
The net force on an object is zero if the object is stationary.
The acceleration of an object is proportional to the force applied.
The momentum of an object is proportional to the mass of the object.
A figure below shows a constant force F acts on a block of mass m through a distance s on a horizontal surface. There is a constant frictional force f opposing the motion of the block. What is the gain in kinetic energy by the block?
Fs
fs
(F – f) s
½ m s2
What will happen to the kinetic energy when the speed of a car doubles?
It is quartered
It is halved
It is doubled
It is quadrupled
Which of the following statements is CORRECT for a particle moving in a horizontal circle with constant speed?
The angular velocity is constant but the linear velocity varies.
Both the linear momentum and kinetic energy is constant.
The speed is constant and the acceleration is zero.
The resultant force is zero and kinetic energy varies.
A mass at the end of a string is set in motion so that it describes a circle in a horizontal plane. Which of the following diagrams shows correctly the resultant force F on the mass?
A rigid body is rotating about an axis passing through its centre. Every point on the body has ……
different angular speed but same linear speed.
same angular speed and angular acceleration.
same angular speed but different angular acceleration.
different angular speed but same angular acceleration.
How many radians make up one revolution of 360 degrees?
2π
π
2π
23π
Which of the following is NOT a unit of rotational speed?
Meters per second
Revolutions per minute
Revolutions per second
Rotations per second
What is a conductor?
a material that heat moves through easily
a material that heat does not move through easily
a material that turns cold when heated
a tool for measuring temperature
“the volume of a gas is directly proportional to the number of moles”. The statement is referring to ……
Avogadro’s law
Boyle’s law
Charles’s law
Pressure law
“Decreasing the volume of a gas sample means increasing the pressure”. The statement is referring to ……
Avogadro’s law
Boyle’s law
Charles’s law
Pressure law
“a process that occurs at constant volume”. The statement is referring to ……
Isothermal process
Isochoric process
Isobaric process
Adiabatic process
