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Heat Flow
Test Description: FCAT PRACTICE
Instructions: Answer all questions to get your test result.
1) A warm rock is in direct contact with the cooler ground. Which of the following will happen?
A
Energy in the form of heat will flow from the rock to the ground, and the temperature of the rock will decrease.
B
Energy in the form of heat will flow from the rock to the ground, and the temperature of the rock will increase.
C
Energy in the form of heat will flow from the ground to the rock, and the temperature of the rock will decrease.
D
Energy in the form of heat will flow from the ground to the rock, and the temperature of the rock will increase.
2) At night, the air is usually cooler than it is during the day. Which term is best defined as a measure of how hot or cold something is?
A
temperature
B
heat
C
kinetic energy
D
thermal energy
3) Kumar is studying how Earth is warmed by sunlight. Which process is mostly responsible for warming the soil in Kumar’s model?
A
Convection currents between the lamp and the soil cause the soil to warm.
B
Conduction between the lamp and the soil causes the soil to warm.
C
Expansion of particles in the soil causes the soil to warm.
D
Radiation from the lamp reaches the soil and causes the soil to warm.
4) Different areas of Earth’s oceans receive different amounts of energy in the form of heat, resulting in ocean currents and weather patterns. What is the main source of this energy?
A
kinetic energy from tides
B
electromagnetic radiation from the sun
C
kinetic energy from ocean currents
D
energy transfer within Earth’s crust
5) Conduction happens as energy flows from a warmer object to a cooler object. Which of the following is an example of conduction?
A
dense water sinks to the ocean floor and less dense water moves to the ocean surface
B
warmer air is pushed upward and out of the way by cooler air
C
electromagnetic radiation transfers energy from the sun to Earth
D
cooler air molecules come in contact with warm ground, causing energy to be passed to the air
6) Air circulates in Earth’s atmosphere. Which of the following is the fundamental cause of air circulation in Earth’s atmosphere?
A
temperature differences
B
Earth's gravity
C
ocean currents
D
Earth's magnetic field
7) As air near Earth’s surface is heated by energy absorbed from sunlight, warm air rises into the atmosphere and cools. This cool air sinks back to Earth’s surface. What process causes this movement of air in the atmosphere?
A
convection
B
radiation
C
conduction
D
polarization
8) In winter, cold air can come into direct contact with warmer ground. Which statement best describes how this cold air is warmed by conduction?
A
Energy flows from the cold air down to the warm ground.
B
Energy is transferred to the air touching the ground.
C
The air absorbs the energy that flows up from the ground.
D
Cold air sinks to the ground and then pushes the warm air up
9) There are three main ways in which heat can be transferred in the Earth system. How does heat transfer by radiation differ from heat transfer by conduction or convection?
A
Radiation can transfer energy between objects that are not in contact with each other.
B
Radiation occurs only when temperature differences are very large.
C
Radiation relies on contact between objects that are in contact to transfer energy.
D
Radiation only transfers energy from the sun to the Earth system.
10) Thermal energy can be classified as which of the following?
A
Density
B
Gas
C
Heat
D
Solids
*select an answer for all questions
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