5.6D Force and Motion

When designing an experiment, why is it important to test only one variable?

• Testing one variable explains what caused the change once data has been gathered

• Testing one variable collects inaccurate data and repeats the investigation more than necessary

• Testing one variable decreases the reliability of the investigation

• It is not necessary to test only one variable

What is the unit of measurement of force?

• Grams

• Milliliters

• Newtons

• Meters

What force is being tested when an object is forced downward toward the center of the Earth?

• gravity

• air pressure

• magnetism

• friction

Tags

NGSS.5-PS2-1

What is an example of a gravitational force?

• Pushing a grocery cart

• dropping a pencil on the ground

• pulling a wagon

• picking up iron filings with a magnet

Tags

NGSS.MS-PS2-4

A marble is rolled in a straight line inside a box. When the marble gets to the end of the box, it changes direction and rolls the other way. Which statement best describes why this happens?

• The marble had nowhere else to go, so it moved in the opposite direction

• The force of gravity on the box pushed the marble in the opposite direction

• The force of the marble hitting the box produced an opposite force pushing the marble in the opposite direction

• The marble stopped by the wall and then magnetic force pushed it in the opposite direction

Tags

NGSS.MS-PS2-2

A baseball player applies a pushing force on a ball thrown in the air. What applies a pulling force to the ball at the same time?

• the mass of the ball

• the force of friction

• how hard they hold the ball

• the force of gravity

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Jeannie put her soccer ball on the ground on the side of a hill. Which force acted on the soccer ball to make it roll down the hill?

• magnetism

• friction

• gravity

• force

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Which word describes a push or pull on an object?

• hypothesis

• force

• mass

• position

Tags

NGSS.3-PS2-1

NGSS.3-PS2-2

Why is it harder for the boy in Image B to get down the hill?

• motion

• friction

• work

• gravity

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

Students drop the same heavy ball onto identical blocks of soft clay from different heights. For each height they measure the depth of the dent the ball makes in the clay. What question could we use this investigation to answer?

• How does the mass of the ball affect the size of the crater?

• How does the height affect the size of the crater?

• How does magnetism affect the size of the crater?

• How does the type of clay affect the size of the crater?