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WorksheetsGeneral Physics Quiz
Total questions: 50
Worksheet time: 50mins
The center of mass of a uniform circular disk is located:
At its center
Along its edge
At a point halfway between the center and the edge
Outside the disk
If two objects of unequal masses are placed on a rigid rod, the center of mass will be:
Closer to the heavier object
Closer to the lighter object
At the midpoint of the rod
At an unpredictable location
The center of mass of a system of particles depends on:
The shape of the objects only
The masses and their positions
The material of the objects
The shape and material
If a projectile follows a parabolic trajectory, its center of mass:
Moves in a straight line
Moves along the parabola
Remains stationary
Oscillates
The center of mass of a solid cone lies:
At its base
At its vertex
Along the axis, one-fourth the distance from the base
Along the axis, one-third the distance from the base
Momentum is defined as:
Mass × velocity
Force × distance
Mass × acceleration
Energy × time
If the momentum of an object is doubled, its kinetic energy:
Remains the same
Doubles
Quadruples
Halves
A 2 kg ball moving at 5 m/s has a momentum of:
10 kg·m/s
20 kg·m/s
25 kg·m/s
30 kg·m/s
Which of the following objects has zero momentum?
A stationary object
An object in uniform motion
A moving object with zero acceleration
An object in free fall
The law of conservation of momentum is applicable when:
External forces are present
Only gravity acts on the system
The net external force is zero
Friction acts on the system
Impulse is equivalent to:
Force × distance
Change in momentum
Work done
Force per unit time
A 10 N force acts on an object for 2 seconds. The impulse delivered to the object is:
5 Ns
10 Ns
20 Ns
40 Ns
If an object's velocity changes from 4 m/s to 10 m/s in 3 seconds, the impulse is:
6 Ns
18 Ns
Depends on mass
Zero
Impulse has the same units as:
Force
Momentum
Energy
Power
The effect of a force applied for a very short duration is best described by:
Work
Energy
Impulse
Power
In an elastic collision:
Only momentum is conserved
Only kinetic energy is conserved
Both momentum and kinetic energy are conserved
Neither is conserved
A perfectly inelastic collision involves:
The objects sticking together after the collision
No deformation of objects
No conservation of momentum
An increase in kinetic energy
Two objects collide head-on elastically. Their relative velocity after the collision is:
Greater than before the collision
Equal to before the collision
Less than before the collision
Zero
A billiard ball colliding with another is an example of:
Elastic collision
Inelastic collision
Perfectly inelastic collision
Rotational collision
During a collision, the force between objects is:
External
Internal
Both external and internal
Negligible
Rotational equilibrium occurs when:
The net force is zero
The net torque is zero
The angular velocity is zero
The net angular acceleration is nonzero
A seesaw is in rotational equilibrium when:
The weights on both sides are equal
The net torque about the pivot is zero
The heavier side moves downward
The pivot is at the midpoint
The condition for rotational equilibrium is expressed as:
ΣF = 0
Στ = 0
Σa = 0
Σv = 0
A 3 m long beam is balanced at its center. A 10 N weight is placed 1 m from the center. What torque does it produce?
3 Nm
10 Nm
1 Nm
30 Nm
Torque depends on:
Force and time
Force and distance from pivot
Mass and acceleration
Energy and velocity
Angular momentum is defined as:
Iω
mv
FΔt
Iα
Moment of inertia depends on:
Mass and radius
Mass distribution about the axis
Angular velocity
Kinetic energy
The rotational analog of mass is:
Angular velocity
Torque
Moment of inertia
Angular acceleration
A torque of 5 Nm is applied to a disk of moment of inertia 2 kg·m². The angular acceleration is:
2.5 rad/s²
5 rad/s²
10 rad/s²
0.4 rad/s²
The kinetic energy of a rotating object is:
1/2 mv²
1/2 Iω²
1/2 mvω
1/2 Iα²
The force of gravity between two objects depends on:
Their masses and distance between them
Their velocities
Their shapes
The medium between them
The gravitational force is:
A repulsive force
An attractive force
Either repulsive or attractive
Zero in vacuum
If the distance between two objects is halved, the gravitational force between them:
Doubles
Quadruples
Halves
Remains unchanged
The value of g decreases as:
The altitude increases
The mass of the object decreases
The mass of Earth decreases
The distance from Earth’s center decreases
The escape velocity from Earth's surface is approximately:
11.2 km/s
9.8 m/s²
7.9 km/s
15 km/s
A motion is periodic if:
It repeats at regular intervals
It is linear
It accelerates uniformly
It occurs in a straight line
The time taken for one complete oscillation is called:
Frequency
Amplitude
Period
Phase
The frequency of a pendulum depends on:
Its mass
Its amplitude
Its length
The air resistance
The total energy of a simple harmonic oscillator is:
Constant
Zero
Proportional to amplitude
Proportional to frequency
A system undergoing simple harmonic motion has its maximum speed at:
The equilibrium position
The amplitude
Halfway between equilibrium and amplitude
At all points
A wave transports:
Matter
Energy
Momentum
Force
The wavelength of a wave is:
The distance between two consecutive crests
The time taken for one oscillation
The distance traveled per second
The highest point of the wave
Sound waves are:
Transverse waves
Longitudinal waves
Standing waves
Electromagnetic waves
The speed of sound is highest in:
Solids
Liquids
Gases
Vacuum
The intensity of sound is measured in:
Hertz
Joules
Decibels
Newtons
The pitch of a sound depends on:
Frequency
Amplitude
Wavelength
Speed
Resonance occurs when:
A system absorbs maximum energy at its natural frequency
A system loses energy at its natural frequency
The frequency of a wave changes
The amplitude of a wave decreases
Specific gravity is the ratio of:
Mass to volume
Weight to density
Density of a substance to the density of water
Volume of a substance to its mass
Pressure is defined as:
Force per unit area
Force per unit volume
Mass per unit area
Mass per unit volume
The SI unit of pressure is:
Pascal
Newton
Joule
Atmosphere
