Practicals

Question 1

What is the apparatus for the average speed down a slope of increasing height?

Answer 1

Metre rule, stopwatch, track or runway, ball bearing or trolley, wooden blocks.

Question 2

What is the method for the average speed down a slope of increasing height?

Answer 2

1. Measure height of ramp using a ruler.
2. Measure distance of ramp using a ruler.
3. Measure time for the ball bearing /trolley to travel the distance using a stopwatch.
4. Change the height of the runway, repeat the experiment and average.
5. Repeat at 6 different heights.

Question 3

What does the speed v.s. height graph show?

Answer 3

It is a curved diagonal line that curves off. This means that the average speed starts to level off after when the height of the ramp gets increased.

Question 4

What is the apparatus for Hooke’s law practical?

Answer 4

Spring, 100g masses on hanger, retort stand and clamp, ruler, g-clamp.

Question 5

What is the method for Hooke’s law practical?

Answer 5

1. Measure natural length of spring N using ruler.
2. Add 100 g mass to spring.
3. Measure total length of spring L when loaded using ruler.
4. Repeat for masses 100- 700g.

Question 6

What is the Hooke’s law graph?

Answer 6

It is a force Vs extension graph.

The graph is a straight diagonal line through the origin but curves when the limit of proportionality is exceeded.

Question 7

What is Hooke’s law?

Answer 7

The extension of a spring is directly proportional to the force applied provided the limit of proportionality is not exceeded.