Question detail

Forces and motion scenario: two trolleys collide and momentum is compared before and after. Which answer best addresses Required practical: acceleration and the objective to measure time and distance to calculate acceleration?

Try the question, check the answer, then read the explanation to understand the curriculum point.

Show answer Topic hub Objective page

At a glance

MCQ

Type

practice

Style

Topic

Forces and motion

Question

A. In the collision scenario, apply acceleration to measure time and distance to calculate acceleration while keeping distance versus displacement separate.
B. In the collision scenario, mix up distance versus displacement and ignore acceleration.
C. Use a general revision statement without applying Required practical: acceleration to the situation.
D. Choose a different forces topic instead of explaining measure time and distance to calculate acceleration.

Answer

The correct answer is: In the collision scenario, apply acceleration to measure time and distance to calculate acceleration while keeping distance versus displacement separate.

Explanation

The correct option is In the collision scenario, apply acceleration to measure time and distance to calculate acceleration while keeping distance versus displacement separate.. It is correct because the scenario says two trolleys collide and momentum is compared before and after, which must be interpreted through Required practical: acceleration. This directly supports the learning objective to measure time and distance to calculate acceleration. Use values 3, 10, and 10 only if the question asks for a calculation. The answer earns credit by naming the relevant force or motion quantity, using units when needed, and avoiding the boundary error distance versus displacement.

Common mistake

Common Mistake in Measuring Acceleration

Students often forget to measure the total distance travelled by the trolley when calculating acceleration, leading to incorrect results.

Ensure to measure the entire distance the trolley travels from start to stop, and use this distance in the acceleration calculation.

Related flashcards

Flashcard 1 of 5

Press Space to flip, arrows to move