5th Science STAAR Review

The picture below shows a pulley system that can be used to lift a box.

Which of these should a person do to lift the box?

• Tie the end of the rope to the box

• Tie the end of the rope to the ceiling hook

• Pull the end of the rope downward

• Allow the end of the rope to move upward

Four students volunteered to help a teacher move boxes of science materials to another room. The table shows what each student did. Based on this information, which student helper did not do any work on a box?

• Helper W

• Helper X

• Helper Y

• Helper Z

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 northeast?

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

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

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

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

Two students are playing on a swing set. Student 1 is leaning back and extending her legs as she moves upward. Student 2 is sitting on the swing with his feet on the ground. Which statement describes how position and work are related in this picture?

• Both students are doing work even if only one student is changing

  position.

• Student 1 is changing position because work is being done on the

  swing.

• Work done by Earth’s gravity prevents Student 2 from changing

  position.

• Work is being done on both students by the swings because one swing is changing position.

The diagram below 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 shown below. In which direction does the ball most likely move after the student taps the ball?

• 
• 
• 
• 

A rubber ball was dropped from the same height onto five different surfaces. The height of the first bounce was measured and recorded. The graph shows the data. Based on the data, which of the following is the best conclusion?

• Rubber balls bounce higher on harder surfaces.

• All balls bounce higher indoors than they do outdoors.

• Tennis balls bounce higher than basketballs on all surfaces.

• Large balls do not bounce as high as small balls.

A student designed an experiment to test how the slope of a ramp affects the distance a toy vehicle rolls after being released. The student set up the experiment as shown below. What should the student do to improve this experiment?

• Use the same ramp in both trials

• Use the same vehicle in both trials

• Use more than two kinds of vehicles

• Use ramps with different surfaces

A student designs an experiment to test the force of a spring using a spring launcher and four sphere with the same diameter but with different masses. What other piece of equipment would be most useful for this experiment?

• A graduated cylinder to measure the volume of each sphere before the sphere is launched

• A beaker to collect the spheres after they are launched

• A stopwatch to measure how long it takes to load each sphere on the spring

• A meterstick to measure the height each sphere reaches after the

  sphere is launched

A student observes that the craters on the moon are different sizes. The student designs an experiment to study of the formation of craters. The materials for the experiment are marbles and a pan of flour. The student makes a hypothesis that the size of the craters made on the surface of the flour will depend on the height from which the marble is dropped. Some of the steps in the student’s experiment are described below. Which of these is most likely Step 3 in the student’s experiment?

• Drop the same marble from different heights into the pan of flour.

• Drop marbles of different masses from the same height into the pan of flour.

• Drop marbles of different sizes from different heights into the pan of

  flour.

• Drop a single marble one time into the pan of flour.

A student uses a spring scale to pull a 50-gram block horizontally across a wood desk. Then the student pulls the block the same distance across surfaces of carpet, and paper, and glass. Which question is this investigation most likely designed to answer?

• How do blocks of different sizes react to force?

• How do different surfaces affect the amount of force needed to move a block?

• How do blocks affect spring scales?

• How does the mass of a block change when it is pulled across a desk?