Science Unit 5 Force & Motion

A train moves along rails. What force acts to SLOW the train's motion?

• buoyancy

• friction

• gravity

• thrust

Tags

NGSS.MS-PS2-2

A girl is throwing a ball high into the air and then catching it. What force is responsible for the ball coming back to the ground?

• acceleration

• friction

• gravity

• thrust

Tags

NGSS.MS-PS2-2

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A soccer ball is rolling across a field. Which force acts OPPOSITE to the direction of the ball's motion?

• friction

• gravity

• lift

• weight

Tags

NGSS.MS-PS2-2

A class has designed and made model sailboats to learn about how boats move in water. The force of the wind makes the boats move forward. What force should they try to reduce to make the boats move faster?

• buoyancy

• drag

• gravity

• lift

A company wants to build a new type of spaceship for transporting astronauts to the moon. What should they do FIRST?

• build a model

• plan a prototype

• test the prototype

• identify the needs of the project

Tags

NGSS.MS-ETS1-1

A plane is flying through the air. What effect does LIFT have on the plane?

• pushes it upward

• pushes it forward

• pushes it downward

• pushes it backward

Which of the following has the GREATEST average speed?

• a car that travels 180 kilometers in 3 hours

• a car that travels 250 kilometers in 5 hours

• a car that travels 160 kilometers in 4 hours

• a car that travels 140 kilometers in 2 hours

A pitcher throws a ball toward a batter. What effect does GRAVITY have on the ball?

• pulls it upward

• pushes it forward

• pulls it downward

• pushes it backward

Tags

NGSS.MS-PS2-2

The steps leading into a building are slippery. What change would make the steps safer?

• decrease lift

• decrease drag

• increase gravity

• increase friction

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Acceleration is a measure related to motion. What is acceleration?

• the rate at which velocity changes

• a measure of the speed of something

• a unit of distance in the metric system

• the energy associated with pushing or pulling

Tags

NGSS.MS-PS2-2