Science STAAR Release

Students used a spring scale to pull 3 different loads across a single surface. Each load had a different mass. They recorded the force (N) needed to pull each load across the surface. Which question were the students most likely trying to answer with this investigation?

• Which surface required the most force to pull the load?

• Does the mass of the load affect the force required to pull the load?

• How can the mass of the load change?

• Does the surface change the mass of the load?

Tags

NGSS.MS-PS2-2

A student wearing skates rolls down a ramp. What force pulls the student down the ramp?

• gravity

• friction

• magetism

• mass

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A student wearing skates rolls down a ramp. What force causes the student to slow down and stop rolling?

• gravity, which acts against the direction of motion

• friction, which acts against the direction of motion

• magnetism, which acts against the direction of motion

• mass, which increases with motion

The picture shows an athlete hitting a ball with a tennis racquet.

What is the athlete demonstrating in the picture?

• Doing work by pushing the ball and changing its motion and position.

• Changing the position but not the motion of the ball.

• Doing work by pulling the racquet and changing the ball's position but not its motion.

• Changing the position and motion of the ball without doing any work.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS3-1

NGSS.MS-PS3-5

The picture shows an athlete who is about to hit a baseball.

Which statement is true?

• The force of the bat will cause the baseball to change direction.

• The force of the bat will not change the direction of the baseball.

• The baseball will continue in the same direction after being hit by the bat.

• There will be no force applied to the baseball, because the baseball is moving faster than the bat.

Tags

NGSS.MS-PS2-1

The diagram shows a view of a ball from above a table. The ball is rolling across the table. A student lightly taps the rolling ball in the direction show.

In which direction does the ball most likely move after the student taps the ball?

• 
• 
• 
• 

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A student designs an experiment to test the force of a spring launcher and four spheres with the same diameter (same size) but with different masses.

What other piece of equipment would be most useful for this experiment?

(a)  

AND how can the hypothesis be tested?​ (b)  

• A graduated cylinder

• A beaker

• A stopwatch

• A meterstick or measuring tape

• launch each sphere and record the height

• launch only one sphere multiple times

• change the spring

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Four students stand facing a box. The diagram below shows an overhead view of the box. The numbered circles represent the positions of the students. What do the students need to do to slide the box to the southwest? (The compass shows you which way each direction is. Southwest is the direction midway between south and west.)

• Students 1 and 2 push, Students 3 and 4 pull.

• Students 1 and 4 push, Students 2 and 3 pull.

• Students 2 and 3 push, Students 1 and 4 pull.

• Students 3 and 4 push, Students 1 and 2 pull.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Cutting the wire at which numbered position would allow two of the lightbulbs to remain lit?

• Position 1

• Position 2

• Position 3

• Position 4

Which switches must be closed for Bulb 1 to remain dark but Bulb 2 to produce light?

• Switch 1 only must be closed

• Switches 2 and 3 must be closed

• Switches 1 and 3 must be closed

• Switches 1, 2 and 3 must be closed

Tags

NGSS.MS-ETS1-1