1. [ Junior school science (physics) ]
Car A has a mass of 1000 kg and a speed of 60 km/h, and car B has a mass of 2000 kg and a speed of 30 km/h. The kinetic energy of car A is _____. 2. [ Junior school science (physics) ]
Electric current in a/an _____________________ circuit travels in ONE path 3. [ Junior school science (physics) ]
If you push on a wall with a force of 30 N, then _____ 4. [ Junior school science (physics) ]
A bullet of mass 40g is moving with a speed of 2.16km/h. Calculate its kinetic energy
5. [ Junior school science (physics) ]
Electric current in a/an ____________________ circuit travels in MORE THAN ONE path. 6. [ Junior school science (physics) ]
If an object has kinetic energy, then it also must have _____.
7. [ Junior school science (physics) ]
A material through which electric current CANNOT pass easily is a/an ____________ 8. [ Junior school science (physics) ]
"Power" is defined as ________ 9. [ Junior school science (physics) ]
An object that has potential energy has this energy because of its _____.
10. [ Junior school science (physics) ]
When an object is lifted 10 meters, it gains a certain amount of potential energy. If the same object is lifted 20 meters, its potential energy is ______. 11. [ Junior school science (physics) ]
Which of the following is needed by plants for production of food? 12. [ Junior school science (physics) ]
As an object goes up a hill at constant velocity, which of the following is NOT true? 13. [ Junior school science (physics) ]
Kinetic energy is energy of a body due to its 14. [ Junior school science (physics) ]
What is the power of a girl that has done work of 50J in 10 secs 15. [ Junior school science (physics) ]
When a bullet is fired from a rifle, the force on the rifle is equal to the force on the bullet. However, the energy of the bullet is greater than the energy of the recoiling rifle because the _______. 16. [ Junior school science (physics) ]
A feather and a coin dropped in a vacuum fall with equal ____ 17. [ Junior school science (physics) ]
Which of the following is NOT a good insulator? 18. [ Junior school science (physics) ]
The formula of potential energy is
19. [ Junior school science (physics) ]
The SI unit of force 20. [ Junior school science (physics) ]
The SI unit of velocity is
