EELS Physics Y9 (Measurements + motion)

which statement describes the motion?

• the speed of the object is increasing with constant acceleration

• the speed of the object is increasing with an acceleration which is not constant

• the speed of the object is decreasing with constant deceleration

• the speed of the object is decreasing with a deceleration which is not constant

Which regions of the graph shows that the train is moving

• P, Q, R, S

• Q, R, S

• Q, S

• R only

A train travelling at 40 m/s takes 2.0 s to pass the man.

What is the length of the train?

• 20m

• 38m

• 40m

• 80m

The table shows the readings from its speedometer every 10 s.

Which two sentences describe the car’s motion in the first 30 seconds and in the last 30 seconds?

• non-zero acceleration THEN constant speed

• zero acceleration THEN at rest

• zero acceleration THEN constant speed

• non-zero acceleration THEN at rest

Which row describes the speed of the vehicle in each section of the graph RESPECTIVELY

• ACCELERATION

  |

  CONSTANT SPEED

  |

  ACCELERATION

• CONSTANT SPEED

  |

  AT REST

  |

  CONSTANT SPEED

• ACCELERATION

  |

  CONSTANT SPEED

  |

  DECELARATION

• CONSTANT SPEED

  |

  CONSTANT SPEED

  |

  CONSTANT SPEED

Two runners take part in a race.

The graph shows how the speed of each runner changes with time.

What does the graph show about the runners at time t?

• Both runners are moving at the same speed.

• Runner 1 has zero acceleration.

• Runner 1 runs ahead of runner 2.

• Runner 2 is slowing down.

A student carries out an experiment to find the density of a rock.

Which two quantities does the student need to make to determine the density of the rock?

• increase in mass

  |

  increase in volume

• final mass

  |

  final volume

• increase in mass

  |

  final volume

• final mass

  |

  increase in volume

A measuring cylinder contains 30cm3 of a liquid. Some more of the liquid is added until the liquid level reaches the 50cm3 mark.

The reading on the balance increases by 30g.

"What is the density of the liquid?"

• 1.5 g/cm3

• 1.7 g/cm3

• 0.6 g/cm3

• 0.67 g/cm3

The times for 10 swings of a pendulum are measured.

What is the average time for one swing?

• 1.028 s

• 1.036 s

• 1.042 s

• 10.28 s

The diagram shows the dimensions of a solid rectangular block of metal of mass m.

Which expression is used to calculate the density of the metal?

A

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