Ace Motion and Time Class 7 Science: Worksheets with Answers Free PDF 2025-26
FAQs on Practice Worksheets for Class 7 Science Chapter Motion and Time
1. What types of numerical problems are most important from the Motion and Time chapter for the Class 7 exam?
For the exam, you should focus on numericals that involve calculating speed, distance, or time. A common question will give you two of these values and ask you to find the third using the formula: Speed = Distance ÷ Time. Make sure you also practice converting units, for example, changing km/h to m/s, as this is often required.
2. How can I draw a distance-time graph correctly to get full marks?
To score full marks on a distance-time graph question, follow these important steps:
- Clearly label the x-axis as 'Time' and the y-axis as 'Distance'.
- Choose a consistent and appropriate scale for both axes (e.g., 1 cm = 5 minutes).
- Plot the points from the given data accurately.
- Use a ruler to draw a straight line connecting the points for uniform motion.
- Give your graph a suitable title, such as 'Distance-Time Graph for a Moving Car'.
3. Which concepts are usually tested as Multiple Choice Questions (MCQs) from this chapter?
For MCQs, you can expect questions that test your understanding of:
- The basic SI units of time (second) and speed (m/s).
- Identifying the type of motion from a graph, like a straight line showing uniform motion.
- The definition of oscillatory motion, with the simple pendulum being a key example.
- Recognising ancient and modern time-measuring devices.
4. What are some key definitions from Motion and Time that are frequently asked for 1 or 2 marks?
Based on the CBSE 2025-26 syllabus, you should be prepared to define these terms clearly:
- Speed: The distance an object covers in a unit of time.
- Uniform Motion: When an object moving in a straight line covers equal distances in equal intervals of time.
- Non-uniform Motion: When an object covers unequal distances in equal intervals of time.
- Time Period: The time a pendulum takes to complete one full oscillation.
5. Why is the slope of a distance-time graph so important in this chapter?
The slope is important because it represents the speed of the object. A steeper slope means the object is moving at a higher speed. A flat, horizontal line (zero slope) indicates that the object is stationary or not moving. Exam questions often ask you to compare the speeds of two objects just by looking at the slopes of their graphs.
6. How do exams typically test the difference between uniform and non-uniform motion?
Exams test this concept in two main ways. You might be asked for the definition directly. More often, you will be given a distance-time graph and asked to identify the type of motion. Remember, a straight, slanting line shows uniform motion, while a curved line shows non-uniform motion. This is a very common question type.
7. How are marks typically distributed for a 5-mark question from Motion and Time?
A 5-mark question from this chapter is usually a numerical problem. The marks are often divided this way:
- 1 mark for writing the correct formula.
- 1 mark for putting the correct values into the formula.
- 1 mark for the correct calculation.
- 1 mark for writing the final answer with the correct units (like m/s or km/h).
- 1 mark for a related concept, like identifying the motion type.
8. What is a common mistake students make in solving speed-related problems?
A very common mistake is forgetting to check the units of measurement. For instance, if the time is given in minutes and the distance in kilometres, you may need to convert the time to hours before calculating the speed in km/h. Always double-check if the units are consistent before you calculate, as marks are often deducted for incorrect units in the final answer.

















