Q9 of 5054_s05_qp_1 - revisedeck

Question 9

Question 9 of 40

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No letter options?

Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.

A 1, 2 and 3 are correct

B 1 and 2 only are correct

C 2 and 3 only are correct

D 1 only is correct

Topics Tested

1. Motion, forces and ene...

1.5.1. Balanced and unbalanced forc...

State that a force may change the velocity of an object by changing its direction of motion or its speed

1. Motion, forces and ene...

1.2. Motion

Define speed as distance travelled per unit time and define velocity as change in displacement per unit time

1. Motion, forces and ene...

1.5.4. Circular motion

Describe, qualitatively, motion in a circular path due to a force perpendicular to the motion as: (a) speed increases if force increases, with mass and radius constant (b) radius decreases if force increases, with mass and speed constant (c) an increased mass requires an increased force to keep speed and radius constant (F = mv²/r is not required)