AQA Activate 3.3 and 3.4 - Work and energy transfer

An object of mass 6.8 kg is lifted to a height of 1.3 m. How much work is done on the object?

• 8.84 J

• 8.1 J

• 5.23 J

• No work is done.

Which is the best 
example of heat transfer 
through radiation?

• heating soup in a pot on the stove
• standing by a  campfire to get  warm on a chilly night
• burning your hand  when touching a hot pan on the stove 
• not getting burned when  touching a wooden spoon that has been in a hot pan 

Which shows an  example of 
convection?

• Jose cooks an egg in a pot of  boiling water. 
• Clara burns her hand by touching  a light bulb. 
• Lucy wraps herself in an electric blanket  to keep warm. 
• Ben holds the end of a metal rod in fire to cook hot dogs. 

Which is the 
best example 
of conduction? 

• boiling a pot of water
• feeling heat from a fireplace 
• a hot air balloon rising and falling 
• touching a hot  handle and  getting burned

Which best explains 
how ice melts in 
a person’s hand? 

• The heat from a person’s  hand transfers by  radiation to the ice, causing it to melt. 
• The heat from a person’s  hand transfers by  conduction to the ice, causing it to melt.
• The cool temperature of  the ice transfers by  radiation to a person’s hand, cooling it off. 
• The cool temperature of  the ice transfers by  conduction to a person’s hand, cooling it off. 

How does heat 
energy from the 
sun reach Earth? 

• conduction
• convection
• radiation
• insulation

A solar panel converts light energy into...

• Kinetic Energy
• Heat Energy
• Electrical energy
• Nuclear energy

Tags

NGSS.HS-PS3-3

 Work done = Force x _________

• a. distance
• b. acceleration
• c. velocity
• d. speed

What is the unit used to measure work?

• Joule
• Watt
• Newton
• Pascal

Tags

NGSS.HS-PS2-1

In which of the following situations do your arms do work on books?

• holding a heavy stack of books while standing
• carrying a heavy stack of books
• dropping a stack of books onto a table
• picking up a pile of books from the floor

Tags

NGSS.HS-PS2-1