Term
| 2.1.1 Define displacement, velocity, speed and acceleration. |
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Definition
displacement: the distance moved from a specified origin in a specific direction (vector)
velocity: the rate of change of displacement (vector)
speed: the rate of change of distance (scalar)
acceleration: the rate of change of velocity (vector) |
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Term
| 2.2.4 State Newton’s first law of motion. |
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Definition
| An object continues in uniform motion in a straight line or stays at rest unless external forces interfere. |
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Term
| 2.2.6 State the condition for translational equilibrium. |
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Definition
| The resultant force acting on an object is zero. |
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Term
| 2.2.8 State Newton’s second law of motion. |
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Definition
| The resultant force is proportional to the rate of change of momentum. If mass stays constant, the resultant force is proportional to the acceleration. |
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Term
| 2.2.10 Define linear momentum and impulse. |
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Definition
Linear momentum: the product of mass and velocity
Impulse: the change in momentum at an instant |
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Term
| 2.2.12 State the law of conservation of linear momentum. |
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Definition
| The total linear momentum of a system remains constant provided that there is no external resultant force. |
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Term
| 2.2.14 State Newton’s third law of motion. |
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Definition
| When two bodies interact, they always exert equal and opposite forces onto each other. |
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Term
| 2.3.6 State the principle of conservation of energy. |
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Definition
| Energy is neither created nor destroyed, it only changes form. |
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Term
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Definition
| The rate at which energy is transferred. |
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Term
2.4.1 Draw a vector diagram to illustrate that the acceleration of a particle moving with constant speed in a
circle is directed towards the centre of
the circle. |
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Definition
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