Worksheetsretake for unit 9 test
Total questions: 19
Worksheet time: 10mins
Trinity buys a battery for her flashlight. Which type of energy does the battery have?
light energy
kinetic energy
potential energy
electrical energy
Ray holds an ice cube in his hand. After some time passes, the ice cube begins to melt. Which term describes the process of heat transfer?
conduction
convection
insulation
radiation
Look at the picture below. As the soup gets hotter, it heats up the spoon.
conduction
convection
insulation
radiation
The pots and pans in Sarah’s kitchen are made of steel, copper, and aluminum. What is the best reason Sarah’s pots and pans are made of these materials?
They are easy to shape
They have low melting points
They are excellent conductors of heat
They have the ability to stop the flow of heat
Objects can have potential energy because of their position. Which object has potential energy?
a parked car idling
a rocket on its way to space
a spinning top on the floor
a mango hanging from a branch
Oki’s house gets very cold on winter nights. She has one thin blanket on her bed. What could she do to stay warmer?
use another thin blanket
use two fluffy blankets instead
use a fluffy blanket and a thin blanket
use a fluffy blanket instead of the thin blanket
Fossil fuels are a major source of energy. Which material is not a fossil fuel?
coal
natural gas
oil
wood
Which form of energy results from vibrations that travel through air?
sound energy
potential energy
electrical energy
chemical energy
Shawn and his family sit around a campfire. What provides energy to keep the fire going?
flames
heat
matchstick
wood
Look at the picture If the spring is squeezed to half its length in the picture, what effect will that have on the ball?
The ball will create more energy
The ball’s kinetic energy will decrease
The ball’s potential energy will increase
The ball’s potential energy will decrease
During an experiment, Corrine uses a piece of equipment to send a ball into the air. The picture below shows Corrine’s equipment. It shows how the ball travels.
electrical
kinetic
magnetic
potential
Ang and Jessica put a spring on a dowel. Then they add a foam ball to the dowel. They push on the ball to squeeze the spring, and then they let the ball go. Which of the following forms of energy does the ball have during the investigation?
chemical energy
electrical energy
magnetic energy
mechanical energy
As it gets warmer, the liquid inside a thermometer rises. Why does this happen?
The liquid expands
The liquid changes color
The liquid changes into a solid
The liquid begins to evaporate
Paula recorded the average temperatures for West Palm Beach, Florida, for four months from February through May. Which is most likely the temperature for February?
72.4 °F
81.7 °F
75.3 °F
67.2 °F
Which material would be best to wrap around a very hot cup to prevent getting burned?
foam
paper
plastic wrap
aluminum foil
Which material would make the best container to warm food over a campfire?
aluminum
plastic
rubber
wood
Rachel tests how quickly different materials change temperature when they are heated. All materials start at 20 ºC and are heated at the same time. The table below shows the temperatures of the materials after 10 min.
Material 1
Material 2
Material 3
Material 4
Dan fills a bowl with hot water. He places four different objects in the bowl. Then he smears a bit of butter on each one, just above the water’s surface. The picture below shows Dan’s experiment.
plastic ruler
wood spoon
metal spoon
rubber spatula
Dose this pot cause conduction
true
false
