Energy1. An apple falls from a height pohonya 8 m, if the mass of 200 g apples,

Energy potential is ....a) 16 Jouleb) 1600 Joulec) 160 Jouled) 1.6 Joule

2. Potential Energy of an object 200 Joule, if its mass is 4 kg of body height ...a) 3 mb) 4 mc) 5 md) 6 m

3. A bullet with a mass of 100 g which has a speed of 100 m / s. Energy kineticnya is ....a) 1000 Jouleb) 750 Joulec) 500 Jouled) 250 joules

4. A runner whose mass is 60 kg, running at speeds of 20 m / s, energy kineticnya is ...a) 12.000 Jouleb) 13.000 Joulec) 14.000 Jouled) 15.000 Joule

5. Energy changes in the plant in order are ...a) Heat to Steamb) Heat the Windc) Heat into Electricityd) Heat to Light

6. A car has 200 000 Kinetic Energy Joule. Mass of 1000 kg, the speed of the car is ...a) 20b) 10

c) 5d) 4

7. Car A Car B 2X mass, moving with the same speed. Comparison of Kinetic Energy cars A and B are ...a) 1:2b) 2:1c) 2:3d) 9:0

8. An object of mass 4 kg, which is at the height of 8 m from the object is tanah.Energy Potential ...a) 322b) 321c) 320d) 319

9. An object whose mass is 1 kg free fall from a height of 5 m, the speed of the object when it touches the ground is ...a) 1b) 4c) 7d) 10

10.An object whose mass is 10 kg falling from a height of 25 m what Kinetic Energy when it hits the ground ....a) 2.500 Jouleb) 5.464 Joulec) 6.565 Jouled) 2.5000 joules

11. Look at the figure!

If the load is 700, how many force needed?a) 350b) 700

c) 100d) 890

12.

How many mechanical advantage?a) 4b) 5c) 6d) 7

13. There is a pair of scissors that has arms 17 cm. And what is the arm of the power of 7 cm bebanya arm ....a) 10 cmb)10 mc) 11 cmd)12 cm