Motion in One Dimension is one of 9 topics in the Grade 10 Physical Sciences CAPS syllabus, covered across 3 lessons on Study Vault. Below are real practice questions from this topic with full worked answers.
Sample practice questions
Easy
1. Average speed is calculated as:
Total distance divided by total time
Displacement divided by total time
Total time divided by total distance
Change in velocity divided by time
Answer: Total distance divided by total time — Average speed = total distance travelled / total time taken, and is a scalar quantity.
Easy
2. Average velocity is a vector quantity calculated as:
Displacement divided by total time, including a direction
Distance divided by total time
Time divided by displacement
Acceleration multiplied by time
Answer: Displacement divided by total time, including a direction — Average velocity = displacement / time, and, being a vector, must be reported with a direction.
Medium
3. A car travels 180 km in 2 hours. Calculate its average speed in km/h.
Answer: 90 — Average speed = total distance / total time = 180/2 = 90 km/h.
