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WorksheetsUnit 4 Final Test
Total questions: 36
Worksheet time: 18mins
Which is an example of a non-contact force?
Ví dụ nào về lực không tiếp xúc?
Friction
Air resistance
Tension
Gravity
What does Newton’s First Law state?
Định luật thứ nhất của Newton phát biểu điều gì?
Force equals mass times acceleration
An object at rest stays at rest unless acted on by a force
Every action has an equal and opposite reaction
Energy cannot be created or destroyed
If forces on an object are balanced, the object will:
Accelerate
Explode
Rotate
Remain still or move at constant speed
What does a force vector show?
Vectơ lực biểu thị điều gì?
Speed only
Mass only
Direction and strength
Volume and temperature
When heat moves through direct contact, it is called:
Khi nhiệt di chuyển qua tiếp xúc trực tiếp, nó được gọi là:
Convection
Radiation
Conduction
Insulation
When heat moves through fluids by circulating currents, it is called:
Khi nhiệt di chuyển qua chất lỏng bằng dòng điện tuần hoàn, hiện tượng này được gọi là:
Conduction
Radiation
Reflection
Convection
Which is a good conductor of heat?
Chất nào dẫn nhiệt tốt?
Wood
Copper
Plastic
Wool
In a vacuum, heat is transferred by:
Trong chân không, nhiệt được truyền đi bằng cách:
Radiation
Convection
Conduction
Insulation
Which of these is an example of convection?
Trong các ví dụ sau, ví dụ nào là ví dụ về sự đối lưu?
Metal getting hot on a stove
Water boiling in a pot
The Sun heating the Earth
Feeling warm next to a fire
What is kinetic energy?
Động năng là gì?
Stored energy
Electrical energy
Chemical energy
Energy of motion
What is the correct formula for calculating force?
F = ma
W = fd
p = mv
V = IR
What does mass measure?
Volume
Speed
Distance
Amount of matter
Which object would have the most kinetic energy?
Vật nào sẽ có động năng lớn nhất?
A moving truck
A parked car
A sleeping dog
A stationary chair
When an object speeds up, what is happening?
Energy is lost
A force is acting on it
It is reaching equilibrium
Its mass is increasing
Which process allows the heat of the Sun to reach Earth?
Conduction
Convection
Radiation
Evaporation
What material would best prevent heat transfer?
Copper
Glass
Rubber
Aluminum
Which law is described as "for every action, there is an equal and opposite reaction"?
Định luật nào được mô tả là "mọi hành động đều có một phản ứng bằng và ngược chiều"?
First Law
Second Law
Law of Gravity
Third Law
Which of the following best describes "work" in science?
Moving an object using a force
Holding an object still
Keeping an object cold
Changing an object’s color
When you rub your hands together and they get warm, heat is transferred by:
Khi bạn xoa hai bàn tay vào nhau và chúng ấm lên, nhiệt được truyền đi bằng cách:
Radiation
Convection
Conduction
Evaporation
Which is an example of radiation?
Feeling heat from a campfire without touching it
Boiling water
Heating a pan on a stove
Warm air circulating in a room
Why does metal feel colder than wood at the same temperature?
Metal reflects more heat
Metal absorbs less heat
Metal conducts heat away from your hand faster
Metal has less mass
Which surface will absorb the most radiant heat?
Shiny white surface
Transparent glass
Reflective silver surface
Dark black surface
In what state of matter does conduction happen the fastest?
Solid
Liquid
Gas
Plasma
What causes warm air to rise in a room?
It becomes less dense
Nó trở nên ít dày đặc hơn
Radiation
It becomes heavier
Conduction
Energy stored due to an object's position is called:
Năng lượng được lưu trữ do vị trí của một vật được gọi là:
Potential energy
Kinetic energy
Thermal energy
Electrical energy
What happens to an object when it falls to the ground?
It stays at the same height
It gains speed because of gravity
It loses all its mass
It freezes in the air
A material that does not easily conduct heat is called:
A conductor
A convection current
A radiator
An insulator
Why does a vacuum flask keep liquids hot or cold?
Tại sao bình chân không có thể giữ chất lỏng nóng hoặc lạnh?
It uses convection
It traps air
It minimizes heat transfer by conduction and convection
It blocks radiation completely
Write True or False for each statement. Balanced forces cause a change in an object's motion.
True
False
Write True or False for each statement. Heat can travel through empty space by radiation.
Viết Đúng hoặc Sai cho mỗi câu. Nhiệt có thể truyền qua không gian trống bằng bức xạ.
True
False
Write True or False for each statement. In conduction, heat is transferred by direct contact between particles.
Trong dẫn nhiệt, nhiệt được truyền đi thông qua tiếp xúc trực tiếp giữa các hạt.
True
False
Write True or False for each statement.
Convection involves the movement of solids.
Viết Đúng hoặc Sai cho mỗi câu. Đối lưu liên quan đến sự chuyển động của chất rắn.
True
False
Write True or False for each statement. A black surface absorbs more heat radiation than a white surface.
Viết Đúng hoặc Sai cho mỗi câu. Bề mặt màu đen hấp thụ nhiều bức xạ nhiệt hơn bề mặt màu trắng.
True
False
1. What is induction?
A way to add numbers
A type of energy transfer using magnets and electricity
A kind of cooking with fire
A type of sound
What is insulation used for?
To create electricity
To make things cold
To stop heat from moving
To make things heavy
Which is an example of convection?
Cooking soup in a pot
