SPMRSM 2008 - Topic Form 5

• radiation

• convection

• conduction

• thermal equilibrium

• is at a lower temperature

• releases light, not heat

• contains a small amount of heat

• has a low specific heat capacity

• $\frac{\left(60\times3\right)}{0.005}J\ kg^{-1}$

• $\left(60\times180\times0.005\right)\ J\ kg^{-1}$

• $\frac{0.005}{\left(60\times180\right)}J\ kg^{-1}$

• $\frac{\left(60\times180\right)}{0.005}J\ kg^{-1}$

• $151.5\ \degree C$

• $333.0\ \degree C$

• $400.2\ \degree C$

• $606.0\ \degree C$

• Electrons flow to the earth

• The belt produces electron

• Electric current flows from the metal dome to the earth

• Electric current flows from the motor to the metal dome

The electric circuits below consist of identical dry cells, ammeters and bulbs. Which circuit produces the brightest light?

• 
• 
• 
• 

• $A_1>A_2>A_3$

• $A_3>A_2>A_1$

• $A_2>A_1>A_3$

• $A_1>A_3>A_2$

• 
• 
• 
• 

• 100 W

• 1 000 W

• 4 000 W

• 8 000 W

• 
• 
• 
•