
Zákon odrazu
Authored by Katerina Kolafova
Science
6th Grade
Used 95+ times

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9 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Zákon odrazu říká:
úhel dopadu se rovná úhlu odrazu
úhel dopadu je různý od úhlu odrazu
úhel dopadu je roven úhlu odrazu, odražený paprsek zůstává v rovině dopadu
úhel dopadu je roven úhlu odrazu, odražený paprsek zůstává v rovině
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Odražený paprsek se odchyluje od rovinného zrcadla o 41°. Jak velký je úhel dopadu ?
98°
82°
49°
41°
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Tyč délky 250 cm vrhá v danou dobu stín dlouhý 2m. Jak dlouhý stín bude vrhat věž o výšce 10 m?
800 cm
80 m
0,08 m
5m
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Pokud dopadající a odražený paprsek svírají úhel 60°, potom je úhel dopadu
60°
120°
30°
20°
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Zákon odrazu se používá
v čočkách
v dalekohledu
v zrcadle
v mikroskopu
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Úhel dopadu je 40°. Jaký úhel svírá dopadající a odražený paprsek?
20°
80°
40°
90°
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Pod jak velkým úhlem pozorujeme Slunce nad obzorem v okamžiku, kdy metrová tyč vrhá stín délky 1,5 m?
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