أوراق عمل Revision العلوم المتكاملة الصف السادس انسبير

أوراق عمل Revision العلوم المتكاملة الصف السادس انسبير

1. Temperature is a measure of ____ of the particles in an object
A. the difference between the potential energy and kinetic energy
B. the sum of the potential energy and kinetic energy
C. the average potential energy D. the average kinetic energy

2. When a substance is heated, the particles gain energy and move apart, increasing the volume. The mass of
_______ .the substance being heated
A. increases
B. decreases
C. stays the same
D. varies unpredictably

3. When temperature increases, average _____ increases
A. potential energy
B. kinetic energy
C. gravitational potential energy

4. A liquid thermometer works because liquid ____ when warmed
A. expands
B. contracts
C. solidifies
D. Condenses

5. When two materials that are in contact have the same temperature, the materials are said
________________________. to be in thermal

6. Heat always moves from ____________ objects to ____________ objects.

7. Hot water is poured into a mug and the mug gets hot. This is an example of which type of energy transfer
A. radiation
B. conduction
C. convection
D. This is not an energy transfer

8._____. A hot iron is turned off and cools down to room temperature. The iron cools because
A. the iron does not hold heat very well
B. the room transfers cold energy to the iron
C. thermal energy is transferred from the warm iron to the cooler room
D. the thermal energy is destroyed during an interaction with the room

9. ?Which type of energy transfer allows the Sun to warm Earth
A. conduction
B. convection
C. radiation
D. transmission

10. _____The ocean is cold even in summer because water
A. has high specific heat
B. has low specific heat
C. conducts heat well
D. is insulated from sunlight

11. The temperature of a piece of iron increases more than that of a sample of water with the same mass when
__________. the same amount of thermal energy is added. This is because
A. iron has a higher specific heat
B. iron has a lower specific heat
C. iron has a higher melting point
D. water is a liquid and iron is a solid

12. The amount of heat required to raise the temperature of 1 kg of a substance by 1°C is its ____________________

13. All of the following are good conductors of heat, Except __________ A. wood B. aluminum C. copper D. silver

14. A good ____________________ transfers heat easily, and a good __________________ does not transfers heat easily.

15._____. The measure of the average kinetic energy of the particles of a substance is its
A. temperature
B. heat
C. thermal energy
D. kinetic energy

16.? Which of the following statements about the particles in a material is true
A. The average kinetic energy of the particles increases as the temperature
B. The average kinetic energy of the particles decreases as the temperature
C. The average kinetic energy of the particles in a substance never changes
D. There is no relationship between kinetic energy and temperature

17. Explain briefly why running hot water over the metal lid of a jar can make it easier to open

18._____________ Kinetic energy is the energy of

19. You grab a bottle of water out of the refrigerator. Your hand gets cold because of which of  the following
A. Conduction
B. Radiation
C. Convection
D. Evaporation

20. The figure represents sun and earth. Which type of energy transfer allows the sun to warm  the earth

A. Radiation
B. Convection
C. Conduction
D. Transmission

21.? Which of the following represents how the energy transfers from the heat source to the pan

A. Radiation
B. Convection
C. Conduction
D. Transmission

22. A student jumped in the ocean on a hot summer day and was surprised that the water was very cold. Use your knowledge of specific heat to explain this.

23. Most materials ____ when they are heated.
A. condense
B. freeze
C. expand
D. contract

24. ?At which temperature are the particles in a pencil moving the fastest
A. 50°C
B. 40°C
C. 30°C
D. 20°C

25. ?Which of the following best describe the gas particles

A. They are moving very slow and far apart
B. They are stationary and are not able to vibrate
C. They are very close together and are able to vibrate
D. They are moving very fast and far apart

26. Model X and Model Y both represent particles of the same substance. Identify the states of matter represented by Model X and Model Y .

___________________________       __________________________

27. The following diagram shows particles before and after adding heat

:After adding heat
The kinetic energy of particles ( increase – decrease – stay the same)
Attractive forces between particles (increase – decrease – stay the same)
Potential energy ( increase – decrease – stay the same)

28. Which beaker has more thermal energy? Explain your answer

29. Ali performed the following experiment. He took a metallic ball and a ring such that the ball can pass through the ring easily. Then, he heated the ball. After heating, the ball didn’t pass  through the ring. What can you conclude from this experiment