What I need.
Swing: Popsicle sticks, string and hot glue.
Slide: Cardboard, popsicle sticks, coloured paper and hot glue.
Hopscotch: Coloured paper and glue.
Swing: Cut the ends off 5 popsicle sticks and hot glue them together, then hot glue 2 pieces of string to the the the top popsicle stick. Hot glue a small popsicle stick to the 2 pieces of string.
Slide: Glue the paper to cardboard then shape the cardboard to the slide. Use paper or card to make sides or the slide. Use popsicle sticks to make ladder to slide.
Hopscotch: Make squares with coloured paper and glue them to the base of playground.
Flying fox: Use popsicle sticks to make start and end of the flying fox, use string for the line and put a tiny piece of straw on the string and connect a seat to the straw.
How these objects use force:
The swing uses force because if you pull the swing back, gravity will try pull it back to the middle.
The slide uses force because gravity pulls you down the slide and you accelerate as you go down the slide.
Hopscotch uses force because you hop into different squares, but gravity is the force that brings you back down to the ground.
The flying fox uses force because when you go on it you accelerate and pulled by gravity down to the other end.