Vocab
A force is a ________ or a ________
What force makes it hard to ride a bike on grass?
friction
You drop an apple and a pencil on the floor. at the apple fell faster. What force is this? Why does this happen?
Gravity
The apple is heavier so it get pulled stronger
An object’s location is called its
position
What happens if you push a moving swing hard?
it will go faster
Two boys are pulling on a toy from opposite sides. One boy pulled a lot and got the toy. The other boy pulled a little and did not. What kind of force is this? Why?
Balanced force
one force is stronger than the other
The pull of gravity affects an object’s ___________
weight
Applying a greater force to a rolling object will make it
go faster or further
Ally pushes a box full of blocks to her room. She fills the box with more blocks. When she tries to push the box, she’s no longer able to move it. Why?
The box has more weight and got heavier. When something is heavier, it needs more force to move it.
What is it called when we describe an object’s position?
position words
Lia and Nick are pushing opposite sides of a box, and the box moves toward Nick. Why?
they have the same amount of force
Two girls with the same mass are pushing at a box from opposite sides with the same amount of force. What will happen to the motion of the box? Why?
the box will not move because they are balanced forces.
Which of the following is a noncontact (not touching) force?
Magnetism or Friction
magnetism
What is the difference between balanced and unbalanced forces?
balanced have the same amount of force on both sides. Unbalanced has one that is stronger than the other.
Explain why it is easier to carry something down a set of stairs than it is to carry it up.
When you are walking down the stairs you are moving WITH gravity. When going up, you are working AGAINST gravity.