5th Grade 2nd 6 Weeks Test 2022

Which property of light causes the image of the candlelight to appear near the bottom of the wall?

• Light refracts when it travels through a new medium.
• Light reflects off of objects at a complementary angle.
• Light travels in a straight line until it strikes an object.
• Light bends around objects when it passes them.

Which of these physical properties do all four objects have in common?

• They all have the same physical state and conduct electricity.
• They all conduct electricity and attract the same metal objects.
• They all attract the same metal objects and are not soluble in water.
• They all are not soluble in water and have the same physical state.

Based on their common properties, how should these objects be classified?

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Which identifies a property that could be used to classify these objects into two groups?

• Density can be used to separate objects
• Magnetism can be used to separate objects
• Solubility can be used to separate objects
• Physical state can be used to separate objects

Which of these best demonstrates the refraction of light?

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People with myopia can't see objects clearly unless they close to them. How do corrective lenses help with myopia?

• Corrective lenses reflect light to make it easier to see distant objects.
• Corrective lenses absorb light to make it easier to see distant objects.
• Corrective lenses block light to make it easier to see distant objects.
• Corrective lenses refract light to make it easier to see distant objects.

When using a solar-powered calculator, what source of energy is being used to power the calculator?

• Electrical energy
• Light energy
• Mechanical energy
• Sound energy

Which two objects use electrical energy to move an object?

• A fan and a pencil sharpener
• A radio and a stove
• A lamp and a television
• A camera and an MP3 player

Using water to turn the turbines in a hydroelectric power plant is an example of using which form of energy?

• Light
• Mechanical
• Thermal
• Electrical

Musical instruments cause the air to vibrate. The energy from these vibrations of air is an example of-

• thermal energy
• light energy
• sound energy
• mechanical energy