Force STAAR Review

A spring scale is a tool that measures the strength of force needed to move an object. The force is measured in Newtons (N). A student sets up two spring scales pulling wooden boxes of different masses across a table. Which question is this investigation most likely designed to answer?

• How does mass affect the force needed to move an object?

• How does the surface affect the force needed to move an object?

• How do wooden blocks affect spring scales?

• How does the mass of one block affect the mass of another block?

Tags

NGSS.MS-PS2-2

Students pull a spring scale attached to a 100-gram block across four different surfaces. Why is the amount of force needed to move the block different in each trial?

• The mass of the block changes.

• The material of the block changes.

• The surface the block is pulled across changes.

• The mass of the spring scale changes.

Tags

NGSS.MS-PS2-2

A student investigated how mass affects force needed to move objects. A student pulled a spring scale attached to a book across a table and recorded the force needed to move the book. Then she placed another book on top of the first book. She pulled the two books across the table and recorded the force needed to move the book. Which of the following is a valid conclusion for this investigation?

• The less mass an object has, the more force required to move it.

• The mass of one book affects the mass of two books.

• The more mass an object has, the less force required to move it.

• The more mass an object has, the more force required to move it.

Tags

NGSS.MS-PS2-2

A student is conducting an investigation using a spring scale to compare the force needed to move blocks with the same volume and different masses across the floor. Which statement is best supported by this investigation?

• Glass requires less force than wood to move.

• Wood moves without any force.

• The copper requires the most force to move.

• Wood requires the most force to move.

Tags

NGSS.MS-PS2-2

If you push a toy car with a greater force, what will happen to its motion?

• It will move slower

• It will move faster

• It will stop moving

• It will move in the opposite direction

Tags

NGSS.MS-PS2-2

What is force?

• The speed of an object

• A push or pull on an object

• The direction an object is moving

• The weight of an object

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Students are investigating how mass affects the force needed to move an object. They attached a wooden block to a spring scale and placed a 10 g mass on top of the block and pulled it 50 cm across the table. Which of the following changes to their setup would result in a larger force reading on the spring scale?

• Using a 20 g mass

• Sliding the block 60 cm

• Attaching a larger spring scale

• Using a circular piece of wood

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

• Gravity caused the car to speed up when rolling down the ramp and slow down when rolling across the floor.

• Friction caused the card to speed up when rolling down the ramp and slow down when rolling across the floor.

• Gravity caused the car to speed up when rolling down the ramp, and friction caused the car to slow down when rolling across the floor.

• Friction caused the car to speed up when rolling down the ramp, and gravity caused the car to slow down when rolling across the floor.

Tags

NGSS.3-PS2-1

NGSS.5-PS2-1

Which of the following best describes the relationship between force and motion?

• Force is not needed to change the motion of an object

• A force can change the speed or direction of an object's motion

• Motion can occur without any force

• Force and motion are unrelated

Tags

NGSS.MS-PS2-2

What happens to the motion of an object when an unbalanced force acts on it?

• It continues moving at the same speed.

• It changes direction.

• It stops immediately.

• It changes speed or direction.

Tags

NGSS.MS-PS2-2