Composition of Matter
This particle determines the identity of an element.
A. Neutron
B. Electron
C. Proton
D. Ion
What is a proton?
Which change results in a new substance forming?
A. Crushing a can
B. Melting ice
C. Rusting iron
D. Dissolving sugar
Rusting iron
A force is BEST described as
A. Energy in motion
B. A push or pull
C. An object at rest
D. A change in shape
What is a push or pull?
According to Newton’s Second Law, acceleration depends on
A. Speed and direction
B. Mass and force
C. Distance and time
D. Weight and volume
What is mass and force?
Which type of wave requires a medium to travel?
A. Light
B. Radio
C. Sound
D. X‑ray
What is sound?
Which substance is made of two or more elements chemically bonded?
A. Element
B. Mixture
C. Solution
D. Compound
What is a compound?
Burning wood is considered a chemical change because it
A. Changes state
B. Is reversible
C. Forms new substances
D. Changes shape
Forms new substances
An object at rest will remain at rest unless
A. It loses mass
B. A force acts on it
C. It gains energy
D. Gravity stops acting
A force acts on it.
If the same force is applied to two objects, the object with меньшую mass will
A. Accelerate less
B. Accelerate more
C. Stay at rest
D. Move at constant velocity
Accelerate more
Wave frequency is measured in
A. Meters
B. Joules
C. Seconds
D. Hertz
What is Hertz?
Sodium chloride (NaCl) is BEST classified as a
A. Mixture
B. Solution
C. Element
D. Compound
What is a compound?
Which observation BEST indicates a chemical reaction occurred?
A. Color change
B. Heat produced
C. Gas formation
D. All of the above
All of the above
Which force requires contact between objects?
A. Gravity
B. Magnetic
C. Electric
D. Friction
What is friction?
Increasing mass while keeping force constant will
A. Increase acceleration
B. Decrease acceleration
C. Stop motion
D. Reverse direction
What is decrease acceleration?
Increasing the amplitude of a sound wave makes it
A. Higher‑pitched
B. Louder
C. Faster
D. Shorter
What is louder?
Atoms of the same element can differ in mass because they have different numbers of
A. Protons
B. Electrons
C. Neutrons
D. Valence electrons
What is neutrons?
Which is a physical change?
A. Tarnishing silver
B. Baking a cake
C. Freezing water
D. Digesting food
What is freezing water?
Balanced forces acting on an object will cause it to
A. Speed up
B. Slow down
C. Change direction
D. Remain at constant motion
What is remain at constant motion?
Which equation represents Newton’s Second Law?
A. F = m + a
B. F = m ÷ a
C. F = m × a
D. F = a ÷ m
What is F = m x a?
Which wave property determines pitch?
A. Amplitude
B. Wavelength
C. Frequency
D. Speed
What is frequency?
Which statement about elements is TRUE?
A. They can be broken down chemically
B. They contain only one type of atom
C. They are always solids
D. They form only ionic bonds
They only contain one type of atom.
During a chemical reaction, atoms are
A. Destroyed
B. Created
C. Rearranged
D. Changed into energy
What is rearranged?
Which situation shows unbalanced forces?
A. A book resting on a table
B. A car accelerating forward
C. Hanging picture
D. Floating boat at rest
A car accelerating forward
Which would require more force to accelerate at the same rate?
A. Empty shopping cart
B. Loaded shopping cart
C. Moving bicycle
D. Rolling ball
What is a loaded shopping cart?
Which electromagnetic wave has the shortest wavelength?
A. Radio
B. Infrared
C. Ultraviolet
D. Gamma
What is gamma?