^{}

Difficulty | Secondary School | High school/other |

★ | Basic | Easy |

★★ | Demanding | Basic |

★★★ | Demanding | |

★★★★ | Difficult | |

★★★★★ | Very difficult |

Define the oscillation time of the pendulum.

Difficulty | Secondary School | High school/other |

★ | Basic | Easy |

★★ | Demanding | Basic |

★★★ | Demanding | |

★★★★ | Difficult | |

★★★★★ | Very difficult |

Define the oscillation time of the pendulum.

Answer: 2,5 s

Difficulty | Secondary School | High school/other |

★ | Basic | Easy |

★★ | Demanding | Basic |

★★★ | Demanding | |

★★★★ | Difficult | |

★★★★★ | Very difficult |

Define the frequency of the pendulum.

Answer: 0,41 Hz

Difficulty | Secondary School | High school/other |

★ | Basic | Easy |

★★ | Demanding | Basic |

★★★ | Demanding | |

★★★★ | Difficult | |

★★★★★ | Very difficult |

Study how the amplitude of the motion affects to the oscillation time.

Answer: Examining the vibrations, it is noticed that there is not much difference, even though the amplitude varies.

Difficulty | Secondary School | High school/other |

★ | Basic | Easy |

★★ | Demanding | Basic |

★★★ | Demanding | |

★★★★ | Difficult | |

★★★★★ | Very difficult |

Investigate the effect of the pendulum length on the oscillation time. Present the results graphically and determine from the graphical representation of the pendulum length when the oscillation time is 1 sec.

Answer: 0,25 - 0,26 m

Difficulty | Secondary School | High school/other |

★ | Basic | Easy |

★★ | Demanding | Basic |

★★★ | Demanding | |

★★★★ | Difficult | |

★★★★★ | Very difficult |

Investigate the oscillation time of a spring effected by different mass. Show the results graphically and determine from the graph of the mass when the oscillation time of the spring is 1 s.

Answer: 305 g - 320 g

Difficulty | Secondary School | High school/other |

★ | Basic | Easy |

★★ | Demanding | Basic |

★★★ | Demanding | |

★★★★ | Difficult | |

★★★★★ | Very difficult |

How much is the measured oscillation time different from the predicted time (in seconds and percentages) of the math pendulum?

Answer: −0,005 ?; −0,2 %

Difficulty | Secondary School | High school/other |

★ | Basic | Easy |

★★ | Demanding | Basic |

★★★ | Demanding | |

★★★★ | Difficult | |

★★★★★ | Very difficult |

Define the value of the force constant k of the spring.

Answer: $13\ N/m$

Difficulty | Secondary School | High school/other |

★ | Basic | Easy |

★★ | Demanding | Basic |

★★★ | Demanding | |

★★★★ | Difficult | |

★★★★★ | Very difficult |

Specify the value of the force constant k of the spring.

Tip 1: The oscillation time of a spring can be determined from the equation $T=2\pi\sqrt{\frac{m}{k}}$

Tip 2: Place the observation values in the $(T^2,m)$ –coordinate system.

Tip 2: Place the observation values in the $(T^2,m)$ –coordinate system.

Answer: $12\ N/m$

Difficulty | Secondary School | High school/other |

★ | Basic | Easy |

★★ | Demanding | Basic |

★★★ | Demanding | |

★★★★ | Difficult | |

★★★★★ | Very difficult |

Specify the value of the force constant k of the spring.

Answer: 12 N/m

Difficulty | Secondary School | High school/other |

★ | Basic | Easy |

★★ | Demanding | Basic |

★★★ | Demanding | |

★★★★ | Difficult | |

★★★★★ | Very difficult |

Determine the critical angle of the total reflection.

Answer: Approximately 42,5°