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Select Lessons (39)
Dynamics: Newton’s Laws of Motion
ELECTRICITY: Current
ELECTRICITY: Current
ELECTRICITY: Resistance
Elasticity
Electric fields
Electromagnetism
Electromagnetism
Energy: Application And Uses
Experimental physics
Forces
Gravitational fields
Heat
Kinematics in Two Dimensions: Vectors, projectiles
Kinematics in one dimension
Linear Momentum
MOTION
MOTION
MOTION
MOTION
MOTION
MOTION: Circular
MOTION: Collision
MOTION: Inclined plane
MOTION: Simple harmonic motion (SHM)
Magnetism
Optics
PLASTICS
PRESSURE
Radioactivity
TEMPERATURE
The Laws of Thermodynamics
Units System
Units System
Units, dimensions and homogeneity
WAVES: Electromagnetic
WAVES: Electromagnetic
WAVES: Sound
5/31 MCQs for:
Kinematics in one dimension
Ball A is dropped from the top of a building. One second later, ball B is dropped from the same building. As time progresses, the difference in their speeds
Remains constant.
Cannot be determined from the information given.
Decreases.
Increases.
A brick is dropped from the top of a building. A second brick is thrown straight down from the same building. They are released at the same time. Neglect air resistance. Compare the accelerations of the two bricks.
It is impossible to determine from the information given.
The first brick accelerates faster.
The second brick accelerates faster.
The two bricks accelerate at the same rate.
Suppose that a car traveling to the West (-x direction) begins to slow down as it approaches a traffic light. Make a statement concerning its acceleration.
The acceleration is zero.
The car is decelerating, and its acceleration is positive.
The car is decelerating, and its acceleration is negative.
A statement cannot be made using the information given.
When is the average velocity of an object equal to the instantaneous velocity?
Only when the velocity is constant .
Always.
Never.
Only when the velocity is increasing at a constant rate.
An object is moving with constant non-zero velocity in the +x axis. The position versus time graph of this object is:
A parabolic curve.
A horizontal straight line.
A vertical straight line.
A straight line making an angle with the time axis.
