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WorksheetsGMAS Review 2
Total questions: 20
Worksheet time: 14mins
Gold is an element. What does an element of gold contain?
one kind of compound
a single type of atom
a simple mixture of different atoms
one mixed substance of two different metals
A science class is trying to determine how long a candle can burn in one liter of air before the oxygen runs out. The class is divided into three different groups. Each group designs its own experiment to find an answer to the question. After conducting the experiments, the three groups compare their results. They find that one group has a different result from the other two. What should the groups do next to determine why one group got a different result?
Review the records of the three experiments.
Design a fourth experiment and consider its results correct.
Repeat the experiments using pure nitrogen instead of air.
Repeat the experiments using different candles.
What is the term used to describe the energy of moving particles?
electrical energy
chemical energy
potential energy
kinetic energy
A list of scenarios is shown below.
I. Water is running
II. A car is parked on a hill
III. One liter of gasoline sits on a bench
Which of the scenarios has kinetic energy?
I
II
II and III
I and III
Carter is preparing a mug of hot chocolate. He stirs the drink with a metal spoon and notices that the handle of the spoon is heating up. What process of thermal energy transfer is responsible for creating the increased temperature of the metal spoon?
conduction
convection
evaporation
radiation
Jeriah places two metal cubes in contact with each other. Energy and heat flow from Cube A to Cube B. What conclusion can be drawn regarding Cube A?
It is larger than Cube B.
It is cooler than Cube B.
It is smaller than Cube B.
It is warmer than Cube B.
When an object is in motion, it possesses what type of energy?
potential
kinetic
thermal
chemical
A toy car rolls down an incline and across a gravel path, where it slows and eventually stops. What energy transformation takes place as the car rolls across the gravel?
electrical energy to mechanical energy
mechanical energy to electrical energy
mechanical energy to thermal energy
thermal energy to electrical energy
Why does a pan of warm water eventually becomes the same temperature as the room it is in?
Heat from the water flows into the air until they are the same temperature.
Coldness from the air flows into the water until they are the same temperature.
Heat from the air flows into the water until they are the same temperature.
Coldness from the water evaporates into the air until they are the same temperature.
An aluminum pot was used to boil water on a gas stove. The cook picked up the pot by the handles, which were not touching the heat source, and got burned. Why did the cook get burned?
The aluminum reacted with the water that was boiling.
The aluminum heated up faster than the water in the pot.
The aluminum conducted electricity to the cook's hand.
The aluminum conducted heat to the cook's hand
The picture shows a student holding a swinging pendulum. Amounts of potential and kinetic energy are recorded at five points of the swinging pendulum. Assuming there is no air resistance, which table correctly demonstrates the law of conservation of energy?
The picture shows how far Jordan's toy car went when he pushed it with the same amount of force on cement and on gravel. Why did the car go farther on the cement than it did on the gravel?
The cement pulled the car forward less than the gravel did.
The cement pushed against the car less than the gravel did.
The cement pulled the car forward more than the gravel did.
The cement pushed against the car more than the gravel did.
Velocity can only be described by including both
speed and direction of the object in motion.
mass and direction of the object in motion.
speed and volume of the object in motion.
mass and volume of the object in motion.
The diagram below shows the movement of two washers, A and B. Washer A falls straight down, while Washer B was hit by a ruler and moves as a projectile. If both washers started moving at the same time, then which washer hit the ground first?
Washer A hit the ground first.
Washer B hit the ground first.
Both washers hit the ground at the same time.
The answer varies based on the speed at which Washer B was hit by the ruler.
When an object is placed in water, both buoyant force and the force of gravity act on the object. What must be true if the object sinks in the water?
The buoyant force is equal to force of gravity on the object.
The buoyant force is greater than the force of gravity on the object.
The buoyant force is less than the force of gravity on the object.
The buoyant force does not act against the force of gravity.
Juanita is riding the school bus. The bus stops as the driver applies the brakes. Which of these best describes this situation?
The bus is gaining energy because of friction.
The school bus does not lose or gain kinetic energy.
There is no force acting on the bus, so it stops moving.
A force is changing the motion of the bus.
The diagram below shows four identical blocks suspended from four identical spring scales. The spring scales are at different locations in the universe. The illustration shows what happens to the four spring scales. Which statement is true about the results shown in this illustration?
The weight of the block at location 1 is the smallest.
The weight of the block at location 2 is the greatest.
The mass of the block at location 3 is the greatest.
The mass of the block at location 4 is the smallest.
Giraldo kicks a ball across the field, and the ball eventually rolls to a stop. Why does the ball stop?
The force of friction overcomes the force of Giraldo's kick.
The force of Giraldo's kick overcomes the force of gravity.
The normal force overcomes the force of friction.
The normal force overcomes the force of gravity.
Carol tries to push a bookshelf across the room. As much as she tries, she can not get the bookshelf to move. Which statement best describes why the bookshelf is not moving?
Carol did not apply enough force to the bookshelf and so the forces are unbalanced.
Carol did not apply enough force to the bookshelf and so the forces are still balanced.
Carol applied too much force to the bookshelf and now the forces on the bookshelf are balanced.
Carol applied too much force to the bookshelf and now the forces on the bookshelf are unbalanced.
Unbalanced forces
make an object move opposite the applied force.
can change an object's speed but not direction.
maintain the constant motion of an object.
cause the motion of an object to change.
