Which color of visible light has the lowest frequency?
A. yellow
B. red
C. indigo
D. violet
Which of these would be a normal resting heart rate of an adult?
A. 84 beats per minute
B. 50 beats per minute
C. 118 beats per minute
D. 42 beats per minute
The heat we get from the sun is what type of heat transfer?
A. radiation
B. convection
C. conduction
D. direct
Which of the following is NOT a fruit?
A. Corn
B. Tomatoes
C. Peppers
D. Carrots
The product of force and distance is __________.
A. Momentum
B. Power
C. Velocity
D. Work
A 1-kilogram mass is dropped from a height of 1 meter.
Its kinetic energy just before it hits the ground is __________.
A. 1 joule
B. 10 joules
C. 100 joules
D. 1,000 joules
Antibodies __________.
A. identify and neutralize foreign objects inside the body.
B. bond with antigens to keep the body's hormones balanced.
C. prevent infection by blocking access to the circulatory system.
D. are produced by the endocrine system.
The spinal cord is part of the __________.
A. circulatory system
B. nervous system
C. respiratory system
D. digestive system
Which U.S. space program is responsible for putting 12 men on the moon?
A. Gemini
B. Titan
C. Voyager
D. Apollo
Minerals are necessary for __________.
A. respiration
B. eliminating waste
C. preventing night blindness
D. metabolic function