Ques: Q: If the experimental value is less than the accepted value, the error is what? Choices: - positive - effective - caused - negative A:
Ans: negative

Ques: Q: Claw ends of hammers and flagpole pulleys are examples of simple machines that reverse what? Choices: - direction of power - direction of work - direction of friction - direction of force A:
Ans: direction of force

Ques: Q: Ions are formed when atoms gain or lose what? Choices: - mass - protons - neutrons - electrons A:
Ans: electrons

Ques: Q: What are the glands that secrete milk in a woman's breasts? Choices: - primordial glands - pituitary glands - lactic acids - mammary glands A:
Ans:
mammary glands