Question detail

Momentum scenario: speed changes over a measured time interval. Which answer best addresses Momentum and conservation of momentum (HT only) and the objective to (HT only) Calculate velocity from momentum and mass?

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

Momentum

Question

A. In the athlete sprint scenario, apply momentum to (HT only) Calculate velocity from momentum and mass while keeping mass versus weight separate.
B. In the athlete sprint scenario, mix up mass versus weight and ignore momentum.
C. Use a general revision statement without applying Momentum and conservation of momentum (HT only) to the situation.
D. Choose a different forces topic instead of explaining (HT only) Calculate velocity from momentum and mass.

Answer

The correct answer is: In the athlete sprint scenario, apply momentum to (HT only) Calculate velocity from momentum and mass while keeping mass versus weight separate.

Explanation

The correct option is In the athlete sprint scenario, apply momentum to (HT only) Calculate velocity from momentum and mass while keeping mass versus weight separate.. It is correct because the scenario says speed changes over a measured time interval, which must be interpreted through Momentum and conservation of momentum (HT only). This directly supports the learning objective to (HT only) Calculate velocity from momentum and mass. Use values 2, 6, and 20 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 mass versus weight.

Common mistake

Common Mistake in Velocity Calculation

Students often confuse the formula for calculating velocity from momentum and mass, mistakenly using mass divided by momentum instead of the correct formula.

Remember that velocity is calculated using the formula velocity = momentum / mass. Always ensure you are using the correct arrangement of the equation.

Related flashcards

Flashcard 1 of 5

Press Space to flip, arrows to move