Games Physical Science

Francis and Pedro are riding bicycles side by side. Pedro passes Francis. What caused Pedro's bicycle to go faster?

• Pedro pushed harder on the pedals.

• Pedro and Francis were going downhill.

• The wind started blowing.

• Pedro's bicycle weighed less than Francis's bicycle.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A train rolls to a stop along a horizontal track without the conductor applying the brakes. What answer choice BEST explains why this occurred?

• The opposing force of friction stopped The opposing force of friction stopped the train. the train.

• The force of gravity slowed the train until it stopped.

• The natural state of the train is not to be in motion.

• The train ran out of momentum.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-5

Alexis and Candace were testing different surfaces to see which one had the least friction. They predicted that the marble, seen above, would travel FASTEST down the ramp when the surface covering had the LEAST friction. Alexis and Candace used rocks, plywood, and velcro to cover the ramp. They let the marble go, not pushing it, but letting gravity pull the marble to the bottom of the ramp. What were the controlled variables in the experiment?

• how fast the marble moved down the ramp

• ramp height, the marble, and using gravity

• the different types of ramp coverings

• pushing or not pushing the marble down the ramp

Tags

NGSS.MS-PS2-2

A student fills 3 containers (X, Y, Z) with one liter of water each and adds different amounts of salt, to each container, as shown in the container. How should the containers be sequenced to show decreasing salt concentration.

• Container Y, Container Z, Container X

• Container Y, Container X, Container Z

• Container Z, Container X, Container Y

• Container Z, Container Y, Container X

Tags

NGSS.MS-PS1-2

Which statement best explains the change that occurs when wood is burned?

• This is a chemical change because the products can be changed back into wood.

• This is a physical change because the products can be changed back into wood.

• This is a chemical change because the products are different from the starting materials.

• This is a physical change because the products are different from the starting materials.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following statements describes one way that solids are different from liquids?

• Solids have weight and liquids do not.

• Solids have a definite shape and liquids do not.

• Solids have a definite volume and liquids don't.

• Solids take up space and liquids do not.

Tags

NGSS.MS-PS3-1

Students observe a demonstration by their teacher. The teacher places a thermometer and ice water in a beaker and slowly heats the beaker on a hot plate. The students know that water freezes at 0°C and boils at 100°C. At three different times, the teacher reads the temperature on the thermometer while the students describe the spacing and motion of the particles in the beaker.

Which data table correctly represents the spacing and motion of the particles at each temperature?

• 
• 
• 
• 

Tags

NGSS.MS-PS1-4

Donna wants to measure the volume of her pet rock, Rocky. She knows she can't measure it with a ruler. What should Donna use to measure the volume of her pet rock, Rocky?

• a scale

• a balance

• a yard stick

• a graduated cylinder

On Monday, Joey filled a glass with tap water. When he looked at the glass a few days later, some of the water had evaporated. Which of the following best describes what happened to the particles of water that evaporated?

• They are absorbed by the glass.

• They became larger in size.

• They spread out into the air.

• They passed through the glass into the air.

Tags

NGSS.MS-PS1-4

A student conducts a scientific investigation to determine which items have densities greater than water. The student knows that if an item has a density greater than water, it sinks. The student drops 4 different items into a beaker of water and records the outcomes in a table.

What conclusion can the student make based on the data collected?

• The rock and the penny have greater densities than the water.

• All of the items have densities greater than water.

• The water is less dense than the birthday candle and the corn kernel.

• Water has a greater density than all the items.