Dear Bloggers,

Year 3 investigated pulleys and how the different setups made a difference to how much effort was required to lift a load and the distance the load travelled.  The direction of motion was studied and students experimented with the effect of crossing the belt.  These basic principles were then applied when the students made ‘Crazy Floors’.  This is a ride where 2 Lego figures spin at different speeds depending on the setup of the pulleys.

 

 Crossing the belt to reverse the direction of the motion

 

Gearing up – the large drive pulley turns the small follower pulley very quickly

 

 A fixed pulley lifting a load.

Crazy Floors – so many different combinations of pulleys are possible.  We tested them all out!!!

Thanks for calling by

 

Mrs Garlick

Dear Bloggers,

Year 3 designed and made a catapult that would propel a small object the greatest distance.  In previous lessons the students had investigated what effect varying the length of the load arm has on the effort required to move the lever and the distance that an object can be catapulted.  This lesson was their chance to apply and extend their new found knowledge.

 

 

Thanks for calling by

Mrs Garlick