Contact Forces
What happens when you push on a wall but it doesn't move?
A) No forces are working
B) The wall pushes back just as hard
C) Gravity stops working
D) The wall has no weight
B) The wall pushes back just as hard
Sound travels through air by:
A) Electricity
B) Light
C) Air particles bumping into each other
D) Magnets
C) Air particles bumping into each other
Which force works without touching?
A) Friction
B) Pushing
C) Magnetism
D) Air pushing
C) Magnetism
What causes day and night?
A) Earth going around the Sun
B) Earth spinning
C) The Moon's shadow
D) Clouds blocking sunlight
B) Earth spinning
What carries the instructions for how living things look and work?
A) Blood
B) Bones
C) DNA
D) Muscles
C) DNA
What makes a rolling ball slow down and stop?
A) Gravity
B) Friction
C) Magnets
D) Wind
B) Friction
What makes a sound high or low?
A) How loud it is
B) How far it travels
C) How fast it vibrates
D) How it bounces
C) How fast it vibrates
What makes a magnetic field around a wire?
A) The metal in the wire
B) Electricity flowing through it
C) The plastic coating
D) Heat from the wire
B) Electricity flowing through it
What causes the seasons?
A) Earth getting closer to the Sun
B) Earth's tilt
C) The Moon pulling on Earth
D) The Sun getting hotter and cooler
B) Earth's tilt
What is a mutation?
A) A change in an organism's DNA
B) A new type of animal
C) A kind of disease
D) A special adaptation
A) A change in an organism's DNA
When a ball hits the floor and bounces up, this shows:
A) Energy doesn't disappear
B) Equal forces
C) For every action, there's an equal reaction
D) Magnetic push
C) For every action, there's an equal reaction
Define Amplitude and Frequency
Amplitude
Frequency
How does a magnet's strength change as you move away from it?
A) It gets stronger
B) It gets weaker
C) It stays the same
D) It flips direction
B) It gets weaker
What causes the Moon look different on different nights?
A) Clouds cover parts of it
B) It changes brightness
C) How the Sun, Earth, and Moon line up
D) Earth's shadow on the Moon
C) How the Sun, Earth, and Moon line up
Which trait would a parent most likely pass to their child?
A) A scar
B) Strong muscles
C) Knowledge
D) Eye color
D) Eye color
Why do you jerk forward in a car when the driver stops quickly?
A) The car breaks down
B) The seatbelt pulls you
C) Your body tries to keep moving forward
D) The seat pushes you
C) Your body tries to keep moving forward
When sound goes between solid, liquid and gas, what happens to its speed?
A) It always goes faster
B) It always goes slower
C) It changes based on what it's moving through
D) It stays exactly the same
C) It changes based on what it's moving through
What happens when you put a magnet near a speaker?
A) The speaker gets hot
B) The sound gets better
C) The magnet makes the speaker move
D) The speaker breaks
C) The magnet makes the speaker move
Why don't we see a solar eclipse every month?
A) The Moon isn't always full
B) The Sun sometimes dims
C) The Moon's path is tilted compared to Earth's path
D) The Moon sometimes disappears
C) The Moon's path is tilted compared to Earth's path
What is natural selection?
A) Farmers picking which plants to grow
B) Animals choosing their mates
C) When traits that help survival get passed on more
D) Scientists making new species in a lab
C) When traits that help survival get passed on more
How do mass, force, and speed change relate to each other?
A) Force = Mass × Speed change
What are the types of sound waves
longitudinal and transverse
How does adding more wire loops to an electromagnet change it?
A) More loops make it stronger
What keeps planets going around the Sun?
B) Gravity
What shows that different species might share common ancestors?
Similar DNA patterns in different species or similar structures