Forces and Energy

Forces 1

100

What is a force?

A push or pull

200

What is an example of a pull?

dragging, yanking, ripping, stretching, etc.

300

What type of force acts on an object without changing its motion?

balanced force

400

True or False: a kick to a soccer ball demonstrates an unbalanced force

true

500

Describe where a push and pull is being used when someone reads a book

pull: turning the pages

push: closing the book

Forces 2

100

What is an example of a push?

shove, punch, close, pinch, etc.

200

Am I using a push or pull when I brush my hair?

pull

300

What type of force changes the motion of an object?

unbalanced force

400

True or False: A rubber duck floating in still water demonstrates a balanced force

true

500

Describe where the balanced and unbalanced force is: a box sitting on the floor that someone decides to pick up

balanced: box sitting on the floor

unbalanced: person picking up the box

Energy 1

100

What is the ability to do work?

energy

200

What is stored energy?

potential energy

300

True or False: Increasing the height of an object decreases its potential energy

False

400

Which has more potential energy: a leaf in the middle or near the top of a tree?

Leaf near the top

500

When someone goes down a slide, what gives them potential energy?

climbing to the top of the slide

Energy 2

100

What are the two main types of energy?

kinetic and potential

200

What is the energy of motion?

kinetic energy

300

True or False: The amount of kinetic energy something has is always greater than the amount of potential energy it had

False

400

When someone goes down a slide, where is the kinetic energy happening?

As the person slides down

500

Describe where the potential and kinetic energy is happening when someone is shooting a bow and arrow

potential: drawing back on the bow string (stored energy)

kinetic: releasing the string, arrow flying through the air