Unit 2.1 Forces around us
Unit 2.2 Changing shape
Unit 2.3 Changing speed
Unit 2.4 Changing direction
Challenge questions (if you dare)
100
What do we call a force that moves something away from you?
A push
100
What is this way of changing the shape of the metal?
Bending
100
True or false:
To make a ball go faster, you use a big pull force.
False. It should be big push force. Pull force is towards you.
100
Pushes and pulls can make moving objects change speed and change what else?
Direction
100
If your favorite 8-bit video game character jumps up on the screen, what invisible natural force pulls them back down to the ground?
Gravity
200
True or false:
A pull is a force that is away from you.
False. Pull force is towards you.
200
Unscramble the letters, guess the correct word.
gcahngni phase
_ _ _ _ _ _ _ _ _ _ _ _ _
Changing shape
200
What parts of a bicycle do you push with your feet to speed up?
Pedals
200
If a football is rolling towards you and you kick it back to your friend, what did you just change about the ball?
Its direction
200
A heavy-lift tricopter drone uses three spinning rotors to fly. To move up into the sky, do the rotors push the air UP or push the air DOWN?
They push the air DOWN
300
Jason is trying to catch the ball. What force can he use to make sure the ball stops?
A push force
300
True or False:
You can change the shape of a rock just as easily as clay by rolling it with your hands
False
300
What parts of a bicycle do you pull or squeeze to slow down?
Brakes
300
True or False:
A smaller push will make an object move faster than a bigger push.
False, it makes it move slower
300
If a motorized toy car is placed on perfectly slippery ice and its wheels spin super fast, why doesn't it move forward?
Because there is no grip or friction to push against the ice
400
If you are using a wheelbarrow, are you mostly using a push or a pull to move it forward?
Push
400
If you roll a piece of clay 10 times, and then roll it 30 times, does it usually get shorter or longer?
It will become longer
400
Nilka is riding a bicycle. She is suddenly going too fast and wants to make the bicycle go slowly. How can she slow down?
A. Pull the brakes
B: Push the brakes
C: Pull the paddle
D: Push the paddle
A: Pull the brakes
400
When you drop a flat sheet of paper, it falls slowly. If you scrunch it into a tight ball, will it fall faster or slower than the flat sheet?
Faster
400
If you are pulling a heavy box of electronic parts towards you, and your friend pushes it from the opposite side with the exact same amount of force, what will the box do?
It will not move at all because the forces are balanced
500
To make a heavy train move, do you need a small force or a big force?
A big force
500
Name a small metal object found in an office that you can use to measure the length of rolled clay.
Paperclips
500
How can you make your friend go faster on a playground roundabout?
Push them with a bigger force