Achievement Test Standardized Achievement Science 5 — Questions and Answers
Question 1: According to Newton's Third Law, when you push against a wall, the wall pushes back with a force that is:
- Larger than your push
- Smaller than your push
- Equal in magnitude but opposite in direction (Correct answer)
- Equal in magnitude and same in direction
Correct answer: Equal in magnitude but opposite in direction
Newton's Third Law states that every action force has an equal and opposite reaction force.
Question 2: Which characteristic best describes an inherited trait?
- A skill learned through practice
- A scar from an injury
- Eye color determined by genes (Correct answer)
- Muscle size built through exercise
Correct answer: Eye color determined by genes
Inherited traits like eye color are encoded in an organism's genes and passed from parents to offspring.
Question 3: What happens to the particles of a substance when it is heated?
- They slow down and move closer together
- They move faster and farther apart (Correct answer)
- They stop moving entirely
- They decrease in mass
Correct answer: They move faster and farther apart
Adding heat increases the kinetic energy of particles, causing them to move faster and expand.
Question 4: Which type of circuit allows current to flow along multiple paths so that if one bulb burns out, the others stay lit?
- Series circuit
- Parallel circuit (Correct answer)
- Open circuit
- Short circuit
Correct answer: Parallel circuit
In a parallel circuit, each component is connected across the same voltage source via its own branch, so others continue if one fails.
Question 5: What is the main function of the cell membrane?
- To produce proteins
- To store genetic information
- To control what enters and exits the cell (Correct answer)
- To carry out photosynthesis
Correct answer: To control what enters and exits the cell
The cell membrane is a selectively permeable barrier that regulates the movement of substances in and out of the cell.
Question 6: A substance has a pH of 2. How would you classify it?
- Neutral
- Weakly acidic
- Strongly acidic (Correct answer)
- Basic (alkaline)
Correct answer: Strongly acidic
The pH scale runs 0–14; a pH of 2 is strongly acidic, well below the neutral value of 7.
Question 7: Which process transfers heat through direct contact between objects?
- Convection
- Radiation
- Conduction (Correct answer)
- Evaporation
Correct answer: Conduction
Conduction is the transfer of heat energy through direct physical contact, such as touching a hot pan.
Achievement Test Standardized Achievement Science 5
According to Newton's Third Law, when you push against a wall, the wall pushes back with a force that is: