Physics
This quantity is the slope of a velocity–time graph.
Acceleration
A solution with pH = 3 has a hydronium concentration of ___ M.
1×10⁻³ M.
The organelle responsible for ATP production.
Mitochondria.
A 2 kg block slides down a frictionless 30° incline. What percentage of g is the acceleration?
0.5 g or 4.9 m/s²
According to solubility rules, all nitrates (NO₃⁻) are ___ in water.
Soluble.
Name the phase where chromosomes line up at the cell equator
Metaphase.
Two identical spheres separate due to repulsion. State the conservation law that determines their final speed when far apart.
Conservation of energy.
Will BaSO₄ precipitate if [Ba²⁺] = 0.020 M and [SO₄²⁻] = 0.010 M? (Ksp = 1.1×10⁻¹⁰)
Yes
A mutation that does not change the amino acid coded is called ___.
Silent mutation.
A wave has frequency 500 Hz and wavelength 0.60 m. Find its speed.
300 m/s.
Name the oxidizing agent in:
Zn(s) + Cu²⁺(aq) → Zn²⁺(aq) + Cu(s)
Cu²⁺.
Natural selection acts on individuals, but evolution occurs at the level of ______.
Populations.
A 0.20 kg mass on a spring oscillates with a period of 0.80 s. If you double the mass, the new period becomes:
1.13 s
Which atom has the larger atomic radius: magnesium or barium?
Barium.
In cell signalling, the stage where the signal triggers gene expression is called ___.
Response.