States of Matter and Changes of state
Newton's laws
kinetic and potential energy
waves
Gravity and Friction
100
What do forces do to moving objects?
They make them start, stop, or turn.
100
What happens when you push a shopping cart with more force?
It accelerates faster.
100
What happens to potential energy when you release a stretched rubber band?
It turns into kinetic energy as it snaps back.
100
How do waves move energy?
Waves transfer energy through vibrations or oscillations.
100
What is gravity?
Gravity is the force that pulls objects toward each other, especially the force that pulls objects toward the Earth.
200
What is condensation?
Gas turns into liquid.
200
Why do objects with more mass need a bigger push to move?
Because they are harder to move, according to Newton's Second Law.
200
Which type of energy is involved when a roller coaster is at the top of a hill?
Potential energy.
200
What is the height of a wave called?
The amplitude.
200
How does gravity affect objects on Earth?
Gravity pulls objects toward the ground, giving them weight and causing them to fall when dropped
300
How are magnetic and electric fields different?
Magnets attract iron; electric fields surround charges.
300
When you sit in a rolling chair and push off, why do you move backward?
Because of Newton's Third Law — for every action, there is an equal and opposite reaction.
300
As a skateboarder goes down a ramp, what kind of energy increases?
Kinetic energy.
300
What is the distance between two wave crests called?
Wavelength.
300
Why do objects fall to the ground when dropped?
Because of gravity, which pulls objects toward Earth’s surface
400
What happens in freezing?
Liquid becomes solid.
400
How does gravity relate to Newton's laws?
Gravity pulls objects downward, and Newton's laws explain how objects move under this force.
400
Can an object have both kinetic and potential energy at the same time?
Yes, for example, a swinging pendulum.
400
What do we call the number of waves that pass a point in a second?
Frequency.
400
How does the mass of an object affect the gravitational pull it experiences?
The more mass an object has, the stronger the gravitational pull it exerts and experiences.
500
Why does a hot air balloon rise?
Warm air is lighter, so it lifts the balloon.
500
What is an example of Newton's First Law in everyday life?
A hockey puck sliding on ice keeps moving until friction or another force stops it.
500
Why does a stretched bow have potential energy?
Because of its shape and position, ready to turn into movement when released.
ReplyForward
500
What happens when waves hit a barrier and bounce back?
They reflect.
500
Why do planets orbit the Sun?
Planets orbit the Sun because of the Sun’s gravitational pull, which keeps them in a curved path around it.