Science Flashcards
7 cards from real MAP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Science flashcards as text
A student pushes a 2 kg cart and a 4 kg cart with the same force. Which statement best describes the result?
Answer: The 2 kg cart accelerates twice as much as the 4 kg cart
By Newton's second law (a = F/m), halving the mass doubles the acceleration for the same force.
Which energy transformation occurs when a battery-powered flashlight is turned on?
Answer: Chemical energy to electrical energy to light energy
The battery stores chemical energy, which becomes electrical energy and then light (and some heat) in the bulb.
A ball is thrown straight up. At its highest point, what is true about its energy?
Answer: Potential energy is at its maximum
At the top the ball momentarily stops, so kinetic energy is lowest and gravitational potential energy is highest.
Sound travels fastest through which medium?
Answer: Steel
Sound moves fastest through solids like steel because particles are tightly packed and transmit vibrations quickly.
Two magnets are placed with their north poles facing each other. What will happen?
Answer: They will repel
Like magnetic poles repel each other.
Which change would increase the strength of an electromagnet?
Answer: Adding more coils of wire
More wire coils concentrate the magnetic field and make the electromagnet stronger.
A wave's frequency increases while its speed stays the same. What happens to its wavelength?
Answer: It decreases
Since speed = frequency × wavelength, a higher frequency at constant speed means a shorter wavelength.