Yr9 iGCSE Physics Enegy Transfer Application QS DCSG

As we dropped the ball, the ​ (a)   (input) was transferred to ​ (b)   _by mechanical transfer. As the ball undergoes ​ (c)   _with the air some of this energy is stored as ​ (d)   _ in the ball so less energy is transferred to kinetic energy. When the ball hits the ground, the kinetic energy is converted into _​ (e)   which is then transferred back into kinetic energy allowing the ball to fly back up. But because it has lost some energy to thermal and sound (hitting the floor) the ball does not reach the same height it was dropped from.

• gravitational potential energy
• kinetic energy
• friction
• thermal energy
• elastic energy

As we dropped the ball from a lower height the efficiency of the ball ​ (a)   , this is because there is less energy lost as thermal (less time spent falling through the air), inside the ball and ​ (b)   (impact) so more energy is converted into elastic upon impact and back into kinetic for the bounce back up, increasing ​ (c)   .

• increased
• sound
• efficiency

As we dropped the ball bearing, the ​ (a)   (input) was transferred to kinetic energy by ​ (b)   When the ball bearing hits the sand, the kinetic energy is transferred into the ​ (c)   causing them to fly up and out, creating a crater. As we drop the ball bearing from a ​ (d)   , more kinetic energy is available to transfer into the sand thus moving more particles and creating a larger crater, or ​ (e)   in diameter.

• gravitational potential energy
• mechanical transfer.
• sand particles
• higher height
• increase

The energy transfers that occur from immediately before the car was released to when the car has fallen 18 m, is that that energy is transferred from a ​ (a)  

(store) to a kinetic​ (b)   , the energy is transferred ​ (c)   and some energy is transferred to a ​ (d)   (store) of car due to ​ (e)   between the car and the shaft.

• gravitational
• (store)
• mechanically
• thermal
• friction

When the ball starts moving and rolls down the hill, then its ​stored ​ (a)   potential energy is transferred​ into kinetic energy. It is this kinetic energy that is responsible for the ​ (b)   of the objects. The energy transfer happens through ​ (c)   transfer, a force, gravitational, pulls the ball down a distance (the height of the hill). Some of the energy is also stored as ​ (d)   energy due to the ​ (e)   with the ground and air.

• gravitational
• motion
• mechanical
• thermal
• friction

The stored energy is called ​ (a)   potential energy. The farther the rubber bands are ​ (b)   , the more potential energy is ​ (c)   . When the rubber bands are released, the potential energy that has been stored up is ​ (d)   into kinetic energy, which causes motion. The transfer happens through a ​ (e)   transfer.

• elastic
• stretched
• stored
• converted
• mechanical

When the kettle is turned on, an electric current flows through the coil, or the 'heating element'. The coil has an electrical ​ (a)   . This resistance turns electrical energy into ​ (b)   energy stored in the coil. This thermal energy is then transferred to the ​ (c)   via ​ (d)   transfer.

• resistance
• thermal
• surroundings
• heat

Elastic potential energy is energy stored in objects by ​ (a)   (like a stretched rubber band) or compression (when you squeeze a spring). When the potential energy is '​ (b)   ', it is converted to the energy of motion, also known as ​ (c)   energy. This transfer happens via mechanical transfer. The spring will also undergo friction with the air and will start to increase in ​ (d)   as it stores thermal energy, some of this thermal energy will be lost to the ​ (e)   via heat transfer.

• tension
• released
• kinetic
• temperature
• surroundings

Where as a microphone converts the movements of its diaphram due to sound energy into electrical signals, loudspeakers convert ​ (a)   energy into motion, ​ (b)   energy, of the diaphram and thus energy is transferred via ​ (c)   .

• electrical
• kinetic
• sound