WorksheetsTopic 2 Science Test
Total questions: 21
Worksheet time: 1hrs 3mins
What will happen when a particle with a negative electric charge is placed near a particle with a positive electric charge?
The particle with the positive charge will attract the particle with the negative charge.
The particle with the positive charge will repel the particle with the negative charge.
The positive charge on the particle will change into a negative charge.
No change will happen.
What is an example of potential energy?
A kite flying in the air
Lightening during a thunderstorm
A soccer ball before a player kicks it
An apple falling from a table
What happens when a plastic rod with more negative charges is close to a metal plate?
The metal plate is an insulator.
The metal plate is a conductor.
The metal plate has gained negative charges.
The metal plate has gained positive charges.
A student observes a fly ball at a baseball game. An outfielder caught the ball. What conclusion can the student make about an unseen force from this observation?
A magnetic force acted on the ball.
A gravitational force acted on the ball.
An electric force acted on the ball.
A repelling force acted on the ball.
What is Kinetic energy?
The energy something has when it is moving
The energy something has when it is sitting still
The energy something has when it thinks
The energy
Which of the following statements describes the effects of gravity on an object? Choose all that are correct.
A baseball falls to the ground after being hit.
The moon orbits the Earth.
An object floats on the surface of the water.
Hands feel warm after being rubbed together.
When a car brakes, the driver's body leans forward and pushes against the seatbelt.
An object that has a lot of thermal energy can be recognized because it —
appears bright
is moving quickly
has a round shape
is warm to the touch
What keeps the Earth moving in its orbit around the Sun?
Gravity
Sun's heat energy
Earth's magnetic field
Earth's rotational speed
Why do we feel ourselves being pulled downwards and not upwards?
because of the wind's force
because of the Earth's magnetic field
because of the Earth's rotational force
because of the Earth's gravitational force
What would happen if the Earth's gravity were to suddenly disappear?
There would be more sunlight.
Earth would get closer to the sun.
Everything would continue as before.
Objects and beings on Earth would float off into space.
How is energy transferred from the sun to the earth?
by lightwaves
through the air
by sound waves
through electric currents
If you touch a metal spoon that has been sitting in a hot soup, how is energy being transferred to your hand?
by heat waves
through the air
by sound waves
through light waves
How is energy transferred from your voice to someone's ear when you speak?
by light waves
by sound waves
through heat waves
through electric currents
How does an electric stove cook food?
It transfers electrical energy into heat.
It uses magnetic force to heat the food.
It uses the ambient light to cook the food.
It cools down the food, which causes it to cook.
Students used thermometers to compare temperatures around their school. Which of these is most likely the reason it was cooler under a tree than on the playground?
A student blocked the wind.
A cloud blocked the Sun.
The tree blocked the cold wind.
Tree leaves blocked some of the sunlight.
The diagram below shows a toaster. In order to toast a slice of bread, the toaster changes electrical energy into which other type of energy?
Chemical
Magnetic
Mechanical
Heat
A student is observing a thunderstorm in the distance. What type of energy is thunder?
Mechanical
Thermal
Sound
Light
An object that has a lot of thermal energy can be recognized because it…
appears bright
is moving quickly
has a round shape
is warm to the touch
Michael wants to create a circuit to light several light bulbs in his house. He is trying to decide whether to wire the light bulbs in a series circuit or a parallel circuit. There are advantages and disadvantages to both types of circuits. What is a disadvantage of wiring the light bulbs in a series circuit?
If one light bulb burns out, none of the other bulbs will light up.
If one light bulb burns out, the other bulbs will burn brighter.
A series circuit does not use any energy to light the bulbs.
If one light bulb burns out, all of the other bulbs will stay lit.
What are three types of energy? (The names! Not examples)
Light energy, thermal energy, sound energy
Car energy, house energy, tree energy
Fast energy, slow energy, medium energy
Happy energy, sad energy, angry energy
Esperanza's teacher is doing a circuit demonstration. The circuit that her teacher is building is similar to the one shown below. What else needs to be done for the circuit to produce light energy?
A wire needs to be added between the light bulb and the battery to open the circuit.
A wire needs to be added between the light bulb and the battery to close the circuit.
A load needs to be added next to the battery to produce less energy.
A load needs to be added next to the battery to produce more energy.
