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PHYSICS > 6.1, 7.1-7.8 - Vectors and scalars, Motion > Flashcards

6.1, 7.1-7.8 - Vectors and scalars, Motion Flashcards

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1
Q

What is displacement?

A

The distance of an object from a point in a specific direction.

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2
Q

Is displacement a vector or a scalar?

A

Vector

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3
Q

What is velocity?

A

The rate of change of displacement.

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4
Q

Is velocity a vector or a scalar?

A

A Vector

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5
Q

What is speed?

A

The change in distance travelled per unit time.

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6
Q

Is speed a vector or a scalar?

A

Scalar

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7
Q

What is acceleration?

A

Rate of change of velocity

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8
Q

what are the units of acceleration?

A

ms-2

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9
Q

What is meant by constant velocity?

A

Speed and direction of motion don’t change

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10
Q

What is represented by the gradient of a distance time graph?

A

Speed

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11
Q

What is represented by the gradient of a displacement time graph?

A

velocity

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12
Q

What is represented by the gradient of a velocity time graph?

A

Acceleration

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13
Q

What is represented by the area under a velocity time graph?

A

Change in displacement

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14
Q

What is represented by the area under an acceleration time graph?

A

Change in velocity

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15
Q

When can SUVAT be used?

A

Constant acceleration, motion along a straight line

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16
Q

WHat is the effect of mass on the acceleration for an object in free fall?

A

None

17
Q

What is the relationship between displacement and time for an object falling freely from rest?

A

displacement is proportional to time squared

18
Q

What is a projectile?

A

An object acted upon only by the force of gravity

19
Q

What shape is the path of a projectile?

A

Parabolic

20
Q

What is the initial velocity of an object that is projected horizontally?

A

0

21
Q

What is the angle of projection that results in maximum range?

A

45 degrees

22
Q

Ignoring air resistance, what is the acceleration of a projectile?

A

G downwards

23
Q

How does horizontal velocity vary in a projectile motion?

A

It is constant

24
Q

What aspect links the vertical and horizontal motion of a projectile?

A

Time

25
Q

What is the vertical velocity at the peak of projectile motion?

A

0

PHYSICS (9 decks)

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