Physics Revision Lesson P1

Physics Revision Lesson P1

Multiple Choice

What new technology allowed Thompson to discover electrons?

• Cathode Rays

• Alpha Radiation

• Electricity

• Magnets

Multiple Choice

What new technology allowed Rutherford to discover the nucleus?

• Cathode Rays

• Alpha Radiation

• Electricity

• Magnets

Multiple Choice

What results did Rutherford observe in his Gold-Foil experiment?

• He observed that all alpha particles did go through a gold-foil in straight lines

• He observed that most alpha particles did not go through a gold-foil and stopped on one side of the gold foil.

• He observed that a small number of alpha particles bounced off the gold-foil at very large angles

• He observed that all alpha particles slightly deflected from the straight line when going through a gold-foil

Multiple Choice

JJ Thomson's experiment that he used to discover electrons

• gold foil experiment

• cathode ray experiment

• neither of these is correct

Multiple Choice

Which of the following is/are conclusions based on Rutherford’s gold foil experiment?

• Atom is mostly empty space

• The nucleus is positively charged

• The atom has a small dense nucleus

• All answers are correct

Multiple Choice

Rutherford realized that the atomic nucleus was positively charged because

• it attracted alpha particles.

• it deflected alpha particles.

• it had no effect on alpha particles.

• it produced alpha particles.

Multiple Choice

The graph shows the cooling curve of a substance. At which stages the specific latent heat released?

• AB and CD

• BC and DE

• AB and EF

• BC and CD

Multiple Choice

What is the formula to calculate specific latent heat of vaporisation?

• $l=\frac{Q}{m}$

• c = Q/(mΔƟ)

• Q = mcΔƟ

• $Q=ml$

Multiple Choice

The heat absorbed by melting a solid is known as

• latent heat of fusion

• latent heat of solid

• latent heat of liquid

• latent heat of vaporisation

Multiple Choice

Latent heat is

• the heat absorbed or released at a boiling process during a change of phase

• the heat absorbed or released at a constant temperature during a change of phase

• the heat absorbed or released at a constant temperature during a change of phase of 1 kg object

• the heat absorbed or released by an object to increase or decrease its temperature by 1 degree Celcius

Multiple Choice

Specific heat of water is  4.18 J/g°C. Specific heat of wood is 1.760 J/g°C What material needs more heat energy to raise the temperature?

• Water
• Wood
• Both are same

Multiple Choice

Copper, Stainless Steel, Carbon Steel, and Zinc were all heated using the same thermal energy.  What material would be the coolest after being heated?

• Copper
• Carbon Steel
• Zinc
• Stainless Steel

Multiple Choice

The SI units J/g°C measures

• Specific heat

• mass

• temperature

• heat energy

Multiple Choice

The specific heat of platinum is 0.133 J/g°C. How much heat(Q) is released when a 10 g piece of platinum cools from 100°C to 50°C?

• 66.5 J

• 665 J

• 0.0266 J

• 0.665 J

Multiple Choice

The energy transferred between object's at different temperatures

• heat
• thermal energy
• radiation
• convection

Multiple Choice

The total kinetic energy of a substance's particles

• thermal energy
• heat
• convection
• conduction

Multiple Choice

If the particles in an object have more kinetic energy, what must be true?

• The object's temperature is lower
• The object's temperature is higher
• The object moves faster
• The object is heavier

Multiple Choice

In which state do particles move fastest and with little effect on each other?

• ice
• gas
• liquid
• solid

Multiple Choice

The lowest possible temperature is___.

• 0⁰F
• 0 K
•  0⁰C
• 273 K

Multiple Choice

The temperature of a substance increases as___.

• the substance expands
• the average kinetic energy of its particles increases
• the substance's volume increases
• the substance's mass increases

Multiple Choice

Jack has a rock. The rock has a mass of 14 g and a volume of 2 cm³. What is the density of the rock?

• 7 mL
• 7 g/cm³
• 28 g/cm³
• 1/7 g/cm³

Multiple Choice

What is the formula for density?

• density = mass x volume
• density = mass / volume
• density = mass + volume
• density = mass - volume

Multiple Choice

How does the mass of a bowling ball on Earth compare to its mass on the moon?

• The mass will be greater on the moon
• The mass will be less on the moon
• The mass will stay the same

Multiple Choice

The diagram shows a cooling curve for ice. Which line represents the ice freezing?

• A

• B

• C

• D

• E

Multiple Choice

The pressure inside the syringe will decrease if we move the plunger in :

• Direction A

• Direction B

• We don't have to move the plunger as the pressure will change on its own.

• None of the above answers.

Multiple Choice

The reason gases can be compressed is because:

• The particles are very close together.

• The particles are merely vibrating.

• The particles are unable to move.

• The particles are very far apart.

Multiple Choice

The pressure inside the balloon will:

• Decrease

• Increase

• Remain the same

• Not enough information to formulate an answer

Multiple Choice

In what direction(s) does air exert pressure?

• everywhere
• no where
• there is no pressure
• downward

Multiple Choice

If a hairspray can is heated, what can be expected of the pressure of the gas inside the can?

• The pressure will increase

• The pressure will decrease

• The pressure will remain constant

• The pressure will equalize

Multiple Choice

How can we increase the gas pressure inside a sealed container?

• Increase the number of particles inside the container
• Increase the temperature
• Decrease the volume of the container
• All of these

Multiple Choice

What is the difference between particles in a gas and a solid?

• gas particles are closer together
• solid particles move faster than gas particles
• solid particles expand on heating
• gas particles have more kinetic energy than solid particles