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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
An object is moving with constant non-zero velocity in the +x axis. The velocity versus time graph of this object is:
A straight line making an angle with the time axis.
A parabolic curve.
A vertical straight line.
A horizontal straight line.
Can an object have increasing speed while its acceleration is decreasing? Support your answer with an example.
Yes, and an example would be an object falling in the absence of air friction.
No, because if acceleration is decreasing the object will be slowing down.
Yes, and an example would be an object released from rest in the presence of air friction.
No, this is impossible because of the way in which acceleration is defined.
Objects A and B both start from rest. They both accelerate at the same rate. However, object A accelerates for twice the time as object B) What is the distance traveled by object A compared to that of object B?
Twice as far
Three times as far.
The same distance.
Four times as far.
A new car manufacturer advertises that their car can go 'from zero to sixty in 8 s'. This is a description of:
Average speed.
Instantaneous speed.
Average acceleration.
Instantaneous acceleration.
A ball is thrown vertically upward with a speed v. An identical second ball is thrown upward with a speed 2v (twice as fast). What is the ratio of the maximum height of the second ball to that of the first ball? (How many times higher does the second ball go than the first ball?)
1.7:1.
1.4:1.
4:1.
2:1.
