- Which of the following distance-time graphs shows a truck moving with speed which is not constant.
Motion and Time Chapter 13 Class 7 Science
Gerak dan Waktu Bab 13 Kelas 7 Sains
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P1. Dalam perlombaan atletik sekolah, seorang anak laki-laki berlari dengan kecepatan 2m/dt dan menjadi yang pertama dalam lomba 200m. Berapakah jarak yang ditempuhnya per detik?
P.3. Sebuah pendulum sederhana membutuhkan 32d untuk menyelesaikan 20 osilasi. Berapakah periode waktu pendulum tersebut?
P. 4. Jarak antara dua stasiun adalah 240 km. Sebuah kereta api membutuhkan 4 jam untuk menempuh jarak ini. Hitung kecepatan kereta api tersebut.
P. 5 Satuan dasar kecepatan adalah: (i) km/mnt (ii) m/mnt (iii) km/jam (iv) m/dt
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5 sections • 5 lectures • 00:37:54 total lengthQ1. In a school athletic meet, a boy ran at a speed 2m/s and stood first in 200m
08:46
Q1. In a school athletic meet, a boy ran at a speed of 2m/s and stood first in a 200m race. How much distance is covered by him per second?
Q2. Rahul and Rijul are going on the excursion. They both have to go to the same place and cover a certain distance but in different cars. If Rahul covers a certain distance in one hour and Rijul covers the same distance in two hours. Who travels with a higher speed?
Q.3. A simple pendulum takes 32s to complete 20 oscillations. What is the time period of the pendulum?
Q. 4. The distance between the two stations is 240 km. A train takes 4 hours to cover this distance. Calculate the speed of the train.
Q. 5 The basic unit of speed is:(i) km/min (ii) m/min(iii) km/h (iv) m/s
Q6. Define the following terms:-A) Distance B) Time : C) Speed:
08:42
Q6. Define the following terms:-
A) Distance
B) Time :
C) Speed:
D) Uniform Motion:
E) Average Speed
Q. 7. Change 20 m/s to km/h
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P1. Dalam perlombaan atletik sekolah, seorang anak laki-laki berlari dengan kecepatan 2m/dt dan menjadi yang pertama dalam lomba 200m. Berapakah jarak yang ditempuhnya per detik?
P2. Rahul dan Rijul sedang pergi dalam ekskursi. Mereka berdua harus pergi ke tempat yang sama dan menempuh jarak tertentu tetapi dengan mobil yang berbeda. Jika Rahul menempuh jarak tertentu dalam satu jam dan Rijul menempuh jarak yang sama dalam dua jam. Siapa yang bepergian dengan kecepatan yang lebih tinggi?
P.3. Sebuah pendulum sederhana membutuhkan 32d untuk menyelesaikan 20 osilasi. Berapakah periode waktu pendulum tersebut?
P. 4. Jarak antara dua stasiun adalah 240 km. Sebuah kereta api membutuhkan 4 jam untuk menempuh jarak ini. Hitung kecepatan kereta api tersebut.
P. 5 Satuan dasar kecepatan adalah:
(i) km/mnt (ii) m/mnt
(iii) km/jam (iv) m/dt
P6. Definisikan istilah-istilah berikut:
A) Jarak
B) Waktu:
C) Kecepatan:
D) Gerak Seragam:
E) Kecepatan Rata-Rata
P. 7. Ubah 20 m/dt menjadi km/jam
P.8. Ubah 54km/jam menjadi m/dt
P.9. Sebuah kereta listrik bergerak dengan kecepatan 30m/dt. Berapakah jarak yang akan ditempuhnya dalam 30dt?
P.10. Sebuah bus membutuhkan 30 menit untuk menempuh jarak 25 km. Hitung kecepatan bus dalam km/jam?
P.11. Sebuah kereta api berjalan dengan kecepatan 110km/jam. Berapa lama waktu yang dibutuhkan untuk menyelesaikan perjalanan 605 km, tanpa pemberhentian di antaranya?
P.12. Waktu yang dibutuhkan untuk 20 osilasi adalah 40 detik. Hitung periode waktu pendulum sederhana.
P.13. Buatlah grafik dari data berikut:
Juga jawablah pertanyaan berikut:
Apakah jenis gerakan yang ditunjukkan dalam grafik tersebut?
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