NCERT Solutions Curiosity Chapter 5 .7 Types of Motion — Activity 5.7: Let us identify
Book page 94 & 955 Updated on2026-09-05
Q1.
Look at the picture of a children’s park (Fig. 5.18) or visit a children’s park. Observe different kinds of motions. Classify them as linear, circular or oscillatory motion. List them in Table 5.4. Give your justification for why you put each in a certain category.
Answer
Look at the path each thing traces, and the answer follows at once.
The three types of motion: a straight-line path, a circular path, and a to-and-fro path about a fixed position.
Table 5.4: Types of Motion
Object
Linear motion
Circular motion
Oscillatory motion
Swing
Moving to and fro
See-saw
Each end goes up and down about the middle support
Merry-go-round
Goes round and round the central pole
Child sliding down the slide
Slides along the straight slope of the slide
Child climbing the ladder
Moves straight up, step by step
Skipping rope being turned
The rope goes round and round the child's hands
Child hanging and swinging on the monkey bars
Body swings to and fro about the bar held
How to justify each entry: name the path, not the object. “The see-saw is oscillatory because each end repeatedly rises and falls about the fixed central support” is a justification; “the see-saw is oscillatory because it is a see-saw” is not.
Tip: One object can appear in two columns. The skipping child moves up and down (oscillatory) while the rope goes round and round (circular). Write the part you mean.