Dynamics
When a single object is moving in a straight line across a frictionless surface, which of the following quantities conserved?
Linear Momentum
Kinetic Energy
Speed
Mechanical Energy
What would be observed if two waves that are initially in phase but have slightly different frequencies interfere over a long distance?
They cancel out each other completely due to destructive interference.
They amplify persistently creating standing waves at fixed positions along their paths.
Their interferences produce a wave whose frequency is average of both frequencies.
They create beats at intervals depending on frequency difference.
If you want to observe and analyze wave patterns produced by an electronic device, which instrument should be utilized?
Oscilloscope
Chronometer
Spectroscope
Hydrometer
There is a system of two blocks and a pulley. Block A is hanging off the pulley and has a mass of 5 kg. Block B is resting on a frictionless table and has a mass of 10 kg. Calculate the magnitude of the force of tension acting on block A.
65.4 N
3.26 N
32.7 N
16.3 N
A pendulum swings from its highest point A to its lowest point B; which forms of energy are being converted as it descends?
Thermal to kinetic energy.
Kinetic to thermal energy.
Potential to thermal energy.
Potential to kinetic energy.
What effect does increasing amplitude have on the period T for a simple harmonic oscillator consisting of a spring attached to a block sliding on frictionless surface?
Decreased amplitude causes a shorter period T owing to the quick return to equilibrium position with reduced displacement size.
Larger amplitudes create longer periods T due to enhanced potential energy regions requiring more conversion time before returning to the equilibrium point.
Increased amplitude results in a longer period T because larger oscillations consume additional time to complete a cycle.
No effect on period T since the period solely depends on mass m and spring constant k according to Hooke's Law regardless of amplitude changes.
How would an increase in Coulomb's constant (ke) impact charged particles in electrostatic equilibrium within an isolated conductor?
It will cause greater surface charge density on conductors due to stronger repulsion between like charges.
It will reduce electrical forces thereby increasing electric potential within conductors without changing charge distribution.
There will be no effect since conductors shield internal charges from external electric fields regardless of Coulomb’s constant value.
Charged particles inside conductors will move towards equilibrium positions more slowly due to decreased net forces acting on them.

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What force is necessary to maintain an object at rest?
Gravitational force
Zero net force
Frictional force
Normal force
If two objects are in contact and one pushes on the other with a certain force, how does the second object's reaction compare in magnitude according to Newton’s third law?
Greater in magnitude but opposite in direction
Less in magnitude but same direction
Equal in magnitude but opposite in direction
Equal in magnitude and same direction
Which quantity measures the rate of change of velocity?
Displacement
Mass
Force
Acceleration