Revise smart, understand Better

0.000 s

Revise smart, understand Better

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

5/12 MCQs for:

Experimental physics

Is a temperature of 30o C warm or cold to man?

Cold.

Warm.

Four students each made a series of measurements of the acceleration of free fall g (in ms-2). The table shows the results obtained. Which student obtained a set of results that could be described as accurate but not precise?

Which is the smallest division on a rule?

1cm.

1mm.

1m.

10dm.

Which of the following experimental techniques reduces the systematic error of the quantity being investigated?

Plotting a series of voltages and current readings for an ohmic device on a graph and using its gradient to find resistance.

Timing a large number of oscillations to find a period.

Adjusting an ammeter to remove its zero error before measuring a current.

Measuring the diameter of a wire repeatedly and calculating the average.

Vernier calipers, reading to 0.1 mm, are used to find the internal diameter (10.0 ± 0.1 mm) and the external diameter (12.0 ± 0.1 mm) of a length of glass tubing. The mean wall thickness would be quoted, therefore, as

1.0 ± 0.2 mm.

2.0 ± 0.1 mm.

1.0 ± 0.1 mm.

2.0 ± 0.0 mm.