Show:
1st Quarter
Energy
2nd Quarter
Season/Moons
Tides/eclipses
100
Working in a science laboratory is safe if you follow some simple safety precautions. Which of the following procedures can be dangerous in a science laboratory? a. Picking up pieces of broken glass b. Wearing goggles when heating liquids c. Wearing gloves when cleaning up spills d. Tying back long hair when heating substances.
a. Picking up pieces of broken glass
100
The batteries in some new flashlights can be charged by turning a handle. Once the battery is charged , the flashlight can be turned on. Which of the following describes the energy transformations that occur in this process? a. Mechanical energy to chemical energy to electrical energy to radiant energy b. Heat energy to chemical energy to electrical energy to radiant energy c. Mechanical energy to chemical energy to electrical energy to sound energy d. Mechanical energy to electrical energy to sound energy
a. Mechanical energy to chemical energy to electrical energy to radiant energy
100
What is wavelength? A) The distance from the equilibrium to the trough B) The distance from the equilibrium to the crest C) The distance from one wave to the same part of the next wave D) The height of a wave
C) The distance from one wave to the same part of the next wave
100
What phase of the moon occurs when the moon is between the sun and the Earth? a. Full moon b. New moon c. 1st quarter moon d. Last quarter moon
b. New moon
100
What causes a lunar eclipse a. The shadow of the moon falls on the sun b. The shadow of the sun falls on the Earth c. The shadow of the moon falls on the Earth d. The shadow of the Earth falls on the moon
d. The shadow of the Earth falls on the moon
200
Which of the following is not part of a well-designed experiment? a. Multiple trials b. Small sample size c. A reproducible procedure d. Keeps all the variables the same except for the one being tested.
b. Small sample size
200
A student holds a ball at the top of a ramp. He lets go of the ball and the ball speeds up as it rolls down the ramp. How do the potential energy and the kinetic energy of the ball change as the ball rolls down the ramp? Why? a. The potential energy decreases and the kinetic energy increases. The potential energy is transformed into kinetic energy as the ball rolls down the ramp. b. The potential energy decreases and the kinetic energy increases. As soon as the ball starts moving it no longer has potential energy; it has only kinetic energy. c. The kinetic energy and potential energy both decrease. Both forms of energy are used up as the ball moves and are not transformed into any other form of energy. d. The potential energy and the kinetic energy both stay the same. One form of energy cannot be transformed into a different form of energy.
a. The potential energy decreases and the kinetic energy increases. The potential energy is transformed into kinetic energy as the ball rolls down the ramp.
200
The primary reason an ice cube feels cold to the touch is that a. conduction causes coldness to leave the ice. b. radiation from the hand enters the ice. c. conduction causes heat to leave the hand. d. convection currents leave the hand.
c. conduction causes heat to leave the hand.
200
What phase of the moon occurs when the Earth is between the moon and the sun? a. Full moon b. New moon c. 1st quarter moon d. Last quarter moon
a. Full moon
200
What kind of eclipse occurs when the sun, moon and Earth are perfectly lined up and the moon is between the Earth and sun? a. Solar eclipse b. Lunar eclipse c. Total eclipse of my heart d. Partial eclipse
a. Solar eclipse
300
Which of the following is a qualitative observation? a. There are thirty students in the room. b. There are four birds in the nest. c. There is a 10 on the wall. d. The student is 5 feet 8 inches tall.
c. There is a 10 on the wall.
300
What does the Law of Conservation of Energy say about the energy in the universe? a. Energy is constantly created b. Energy is constantly destroyed c. Energy is never created or destroyed d. Energy stays in the same form.
c. Energy is never created or destroyed
300
A wave with a high frequency and a low amplitude will be a. Soft and high pitched b. Soft and low pitched c. Loud and high pitched d. Loud and low pitched
a. Soft and high pitched
300
The sun appears to move across the sky during the day. The best explanation for this apparent motion is that Earth is a. Tilted on its axis b. Revolving around the sun c. Rotating on its axis d. Much small than the sun
c. Rotating on its axis
400
Students are studying how the amount of ice affects the temperature of water. What is the independent variable? A. the amount of water in each beaker B. the amount of ice added to each beaker C. the initial temperature of the water in each beaker D. the amount of time during which observations took place
B. the amount of ice added to each beaker
400
Jackie used a portable electric drill to remove screws from a broken wooden table. He noticed that the screws holding the table together were warm to the touch after being removed from the wood. What explains this phenomenon? a. Mechanical energy from the drill was converted into thermal energy due to friction. b. Electrical energy from the drill was converted into chemical energy due to resistance. c. Thermal energy from the drill was converted into mechanical energy due to inertia. d. The process of removing the screw concentrated the thermal energy that was already present in the wood.
a. Mechanical energy from the drill was converted into thermal energy due to friction.
400
Water boiling is an example of a. convection b. conduction c. condensation d. radiation
a. convection
400
What change would occur if Earth’s rate of rotation significantly increased a. The year would be shorter b. The year would be longer c. The day would be shorter d. The day would be longer
c. The day would be shorter
400
What happens to the level of the tides during a neap tide? Why? A) Tides are more extreme because the pulls are working together B) Tides are less extreme because the pulls are working together C) Tides are more extreme because the pulls are working against each other D) Tides are less extreme because the pulls are working against each other
D) Tides are less extreme because the pulls are working against each other
500
Students are studying how the amount of ice affects the temperature of water. What is the dependent variable? A. the temperature of the water B. the amount of ice added to each beaker C. the initial amount of water in each beaker D. the amount of time during which observations took place
A. the temperature of the water
500
As a ball rolls down a hill, where will it have the greatest kinetic energy and the least potential energy? a. top of the hill b. midway down the hill c. at the bottom of the hill d. at the far end of the straight path after the hill
c. at the bottom of the hill
500
Which of the following describes constructive interference? a. Two waves going in same direction that make the resulting wave smaller b. Two waves going in the same direction that make the resulting wave larger c. Two waves going in different directions that make the resulting wave smaller d. Two waves going in different directions that make the resulting wave larger.
b. Two waves going in the same direction that make the resulting wave larger
500
The seasons on Earth are caused by Earth’s __________________. a. Revolution and rotation b. Tilt and Revolution c. Rotation and tilt d. Closeness to the sun
b. Tilt and Revolution
500
What happens to the level of the tides during a spring tide? Why? A) Tides are more extreme because the pulls are working together B) Tides are less extreme because the pulls are working together C) Tides are more extreme because the pulls are working against each other D) Tides are less extreme because the pulls are working against each other
Tides are more extreme because the pulls are working together