Practical Phys

Question 1

Describe error when measuring and the solution

Answer 1

Object may be IRREGULAR SHAPED or wire may have KINKS.
Measure 3 more times and calculate the average of the (dimension)

Question 2

Describe error during Pendulum/oscillation and the solution

Answer 2

-Difficult to ensure it oscillates on a plane. Take more readings for time taken for at least 10 oscillations and find the average
-Unstable base. Let pendulum swing until oscillation stabilise.

Question 3

Errors and solution during experiments involving Springs/rubber bands/balances

Answer 3

Non-linear extension
Take a few more readings and find average

Question 4

Errors and solution for kinematics experiments

Answer 4

Assumptions made about the experiment(ignoring friction or air resistance)
Take more readings and find average

Question 5

Errors and solution for Heat experiments

Answer 5

Heat loss to surroundings or thermometer is not responsive enough.
Repeat and find average

Question 6

Errors and Solutions during light experiments with optical pins

Answer 6

Holes may be too big to determine the center.
Repeat and find average

Question 7

Error and Solution in experiments with electricity

Answer 7

Heating in wire affects resistance.
ensure the switch is off when taking readings
Kinks in wire affecting length and resistance.
take additional readings for Length/Current/Voltage and find average