3880618
Descripción
Test por Jake Perkins, actualizado hace más de 1 año
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Creado por Jake Perkins
hace alrededor de 9 años
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Pregunta 1
Pregunta
If there is a not-zero resultant force acting on a toy car, what effect will be observed?
Respuesta
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An acceleration in the opposite direction of the resultant force.
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Nothing.
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An acceleration in the direction of the resultant force.
Pregunta 2
Pregunta
Velocity and Speed are the same thing.
Respuesta
- True
- False
Pregunta 3
Pregunta
How is a constant deceleration shown on a velocity-time graph?
Respuesta
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A positive gradient/slope.
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A negative gradient/slope.
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A flat line, gradient of 0.
Pregunta 4
Pregunta
What two forces balance when car travels at a constant speed? (Tick Two)
Respuesta
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Resualnt Force
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Driving Froce
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Weight Force
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Braking Force
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Friction Force
Pregunta 5
Pregunta
The two factors that affect a car's overall stopping distance are the reaction time and braking distance.
Respuesta
- True
- False
Pregunta 6
Pregunta
What is Terminal Velocity?
Respuesta
-
The highest acceleration.
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The speed at which a human dies.
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Constant speed reached when upward and downward forces are balanced.
Pregunta 7
Pregunta
The name given to energy store in a spring is called Elastic Power Energy.
Respuesta
- True
- False
Pregunta 8
Pregunta
Choose an equation to express the balance when terminal velocity is reached.
Respuesta
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R - W = 0
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R + W = 0
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