WorksheetsDBA S5.2 Review 20-21
Total questions: 15
Worksheet time: 16mins
I think it's too late for the skeleton but what force, or forces, are at work in this picture?
Gravity
Friction
Both gravity and friction.
Neither gravity and friction.
Which form of energy is used to stir the liquid?
Electrical
Mechanical
Thermal
Sound
What type of energy is being produced by Animal?
Mechanical
Sound
Both Mechanical and Sound
Electrical
An old-fashioned metal toy is shown. When the candle is lit, the horses begin to turn. Why?
Heat from the candle produces currents of warm air.
Heat from the candle produces electrical energy.
Light from the candle produces mechanical energy.
Light from the candle produces wind currents.
Which of these diagrams shows how the light appears on the opposite wall of the box?
A
B
C
D
A student uses headphones to listen to music. Which of these uses the same source of energy?
A flute using sound energy.
A piano using mechanical energy.
A lamp using electrical energy.
A teapot using thermal energy.
If switch 1 were closed, how many devices would then work?
1
2
3
4
Students shine a laser beam through a medium. What are they demonstrating?
Light travels in a straight line & is bounced, or refracted.
Light travels in a straight line & is bent, or reflected.
Light travels in a straight line & is bounce, or reflected.
Light travels in a straight line & is bent, or refracted.
A student built the circuit shown below. The lightbulb does not glow. Why?
The battery is not charged.
The lightbulb is not part of a complete circuit.
The circuit does not have a switch.
The bell uses most of the energy from the battery.
A student looks into a mirror and sees an image. Which image shows where the object X is located?
F
H
G
J
The fish appears to be closer to the surface than it really is. What causes the difference?
Light is reflected.
Light is transmitted.
Light is blocked.
Light is refracted.
The boy used the pulley to move the object 5 meters. Is the boy doing work?
No, because it wasn't hard.
No, because the object didn't move very far.
Yes, because the object moved after a force was applied.
Yes, because he is sweating!
Bats use echolocation to find food. It flies and listens for it's sound to bounce off of prey.
Bats use thermal and light energy to get food.
Bats use sound and thermal energy to get food.
Bats use mechanical and sound energy to get food.
Bats use light and mechanical energy to get food.
Dracula used these lights to decorate the house. One of the lights was out but the rest worked. Why?
The lights must be on a series circuit.
The lights must be on a parallel circuit.
The lights must be on a closed circuit.
He needs better lights!
Vampires cannot see their reflection in a mirror. Why can we see the cup the mirror?
Light travels in a straight line and bounces off the mirror.
Light travels in a straight line and bends in the mirror.
Light travels in a straight line and refracts in the mirror.
Light travels in a straight line and is absorbed.
