SchoolNet: First Nine Weeks Review

Robby has two toy trucks. His red truck has a higher mass than his blue truck. What will he have to do to make the two trucks go the same speed?

• A. He can push both trucks with the same force for the same period of time. 
• B. He can push both trucks with the same force, but he will have to push the red truck for a longer time
• C. He can push both trucks for the same amount of time, but he will have to push the red truck with more force
• D. He can push both trucks for the same amount of time, but he will have to push the blue truck with more force. 

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which of the following tables would be the hardest to pick up? 

• A. folding table with a mass of 18 kilograms
• B. plastic table with a mass of 11 kilograms
• C. wooden table with a mass of 60 kilograms
• D. metal table with a mass of 105 kilograms

Violet kicks a football into the air. What will happen to the ball?

• A. It will rise, then keep rising. 
• B. It will rise, then fall to the ground.
• C. It will rise, then bounce in the air
• D. It will rise, then float in the air

Tags

NGSS.MS-PS2-4

Landon drops a bowling ball and a feather at the same time. She sees that the feather falls slower than the bowling ball. What is most likely the reason this is true?

• A. The bowling ball has more gravity in it, making it heavier. 
• B. Gravity works faster on the bowling ball because it is heavier
• C. Air pushes up on the falling feather, working against gravity.
• D. The feather is not affected by gravity because it is too light

Tags

NGSS.MS-PS2-2

Amber is outside watching airplanes. She wonders what keeps the airplanes in the sky. Which best describes what prevents the airplanes from falling to Earth? 

• A. The force of motion on the airplane is greater than the force of gravity pulling it down.  
• B. The force of motion of the airplane is less than the force of gravity pulling it down.  
• C. The airplane is higher than the point at which gravity would affect it
• D. The airplane is lower than the point at which gravity would affect it.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Which of the following is a simple machine?

• car 
• leaf blower
• rake
• washing machine

What simple machine uses a straight beam and a fulcrum?

• wedge
• screw
• lever
• pulley

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

The picture shows a pulley.

• AIt changes the amount of force needed
• It changes the direction of force
• It decreases the amount of work needed.
• It increases the speed of force

Tags

NGSS.MS-ETS1-1

Jason is cutting logs for a fire. Which type of simple machine will best help Jason?

• a wedge because it changes the direction of force to split the logs
• an inclined plane because it uses a better angle of force to split the logs
• a pulley because it spreads the force outward to split the logs
• a lever because it changes the amount of force needed to split the logs

Which statement best supports the claim that gravitational force affects the motion of an object?

• A toy falls to the ground when it is dropped.

• A tire comes to a stop after it finishes rolling.

• A baseball travels in the air when it is tossed.

• A magnet pulls a stack of paper clips toward it.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4