The line graph shows the length of a spring when various masses are hung on it.
- What is the length of the spring when a 30 g mass is hung on it?
- What is the mass hung on the spring when its length is 30 cm?
- What is the length of the spring when it is not stretched?
- How many centimetres is the spring stretched after a mass of 40 g is hung on it?
(a)
Length of the spring when a 30 g mass is hung on it = 50 cm
(b)
Mass hung on the spring when its length is 30 cm = 10 g
(c)
Length of the spring when it is not stretched = 20 cm
(d)
Length of the spring that is stretched after a mass of 40 g is hung on it
= 60 - 20
= 40 cm
Answer(s): (a) 60 cm; (b) 20 g; (c) 20 cm; (d) 40 cm