Modeling

1. The diagram shows a strip of paper tape that has been pulled infra a vibrating arm by an object moving at ageless speed. The arm is vibrating regularly, making 50 dots per second.

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What was the speed of the object?

A 2.0 cm/s B 5.0 cm/s C 100 cm/s D cc cm/s

2. Oil drips at a constant locate from a moving car. The diagram shows the pattern of the drips on a road.
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Which statement describes the motion of the car?

A It accelerate and wherefore moved at a unfaltering speed.
B It accelerated and then slowed down.
C It moved at a steady speed and then slowed down.
D It moved at a steady speed and then accelerated.

3. A piece of pure card is held against the teeth of a cog wind.
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When the wheel is dark at high speed, a note is heard.
How can the bear of the note be raised?
A by force per unit bea the card against the teeth with a greater force
B by turning the wheel more quickly
C by utilize a thicker card
D by using a wheel with fewer teeth

4. An airship is moving forwards at constant height.

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Which statement is correct?
A Gravity no womb-to-tomb has any effect.
B The airship now has zero mass.
C The potential energy is zero.
D The upward and downward forces are balanced.


5. An aircraft, flying at a constant height, is gaining speed.




The four forces playing are
L lift due to the wings
R air resistance
T the thrust due to the engines
W the weight


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6. The diagram shows a speed-time graph.
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In which region is the acceleration decreasing?
A V to W
B W to X
C X to Y
D Y to Z

7. A triangular piece of card with a triangular reparation can be balanced on the thin bounds of a ruler, as shown.
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