Junior high Natural Sciences

Question 50: Given the following forms of energy: Kinetic energy of an object, energy of blowing wind, light energy, electrical energy. Which energy group do these energies belong to? A. … [Read more...] about Question 50: Given the following forms of energy: Kinetic energy of an object, energy of blowing wind, light energy, electrical energy. Which energy group do these energies belong to?

Question 49: Gravitational potential energy, elastic potential energy, chemical energy, nuclear energy belong to which energy group? A. Energy storage group … [Read more...] about Question 49: Gravitational potential energy, elastic potential energy, chemical energy, nuclear energy belong to which energy group?

Question 48: Compare the gravitational potential energy of object M in the two figures? A. The gravitational potential energy of the body M in figure 1 is larger than in figure 2 … [Read more...] about Question 48: Compare the gravitational potential energy of object M in the two figures?

Question 47: Find suitable words to fill in the blanks: The energy of the fuel in the car turns into _______ of the moving car. A. light energy … [Read more...] about Question 47: Find suitable words to fill in the blanks: The energy of the fuel in the car turns into _______ of the moving car.

Question 46: Fill in the blank with the missing word: “When energy…, the force can be …”. A. the more, the weaker … [Read more...] about Question 46: Fill in the blank with the missing word: “When energy…, the force can be …”.

Question 45: Choose the correct answer: A. 1J = 1000kJ … [Read more...] about Question 45: Choose the correct answer:

Question 44: Complete the following sentence: “The _____ energy of the Sun shining on the Earth is absorbed by plants to _____ and _____”. A. light, live, grow … [Read more...] about Question 44: Complete the following sentence: “The _____ energy of the Sun shining on the Earth is absorbed by plants to _____ and _____”.

Level 43: Dropping a ping-pong ball from a certain height, after hitting the ground, the ball does not bounce to the original height because: A. the ball is attracted to the earth … [Read more...] about Level 43: Dropping a ping-pong ball from a certain height, after hitting the ground, the ball does not bounce to the original height because:

Question 42: Show which form of energy has been converted to through the parts (1), (2) of the following device. A. (1) Mechanical energy, (2) Light energy … [Read more...] about Question 42: Show which form of energy has been converted to through the parts (1), (2) of the following device.

Question 41: Which device converts electrical energy into heat? A. Figure A … [Read more...] about Question 41: Which device converts electrical energy into heat?