Science BMK Review

Based on the model, determine which direction the box will move.

• left

• right

• up

• down

Firefighters are using the water hose in order to put out a fire. Based off the model above, what is the best explanation to tell why the firefighters would need to aim slightly upwards when controlling the hose?

• The force of gravity pushes the water up and out of the hose.

• Inertia is acting on the water coming out of the hose, pulling it downwards.

• The force of gravity will pull the water downwards.

• There is not enough water pressure coming out of the hose.

Which explanation gives the best evidence to describe what occurred in trial 4?

• Student B applied less force than Student A, causing the resulting net force to be balanced.

• Student B applied more force than Student A, causing the resulting net force to be

  unbalanced.

• Student A applied less force than Student B, causing the resulting net force to be balanced.

• Student A applied more force than Student B, causing the resulting net force to be unbalanced.

Two students are playing on a swing set. Student 1 is moving forward and student 2 is sitting with his feet on the ground. Based on the model and explanation given, predict the next movement of each student.

• Student 1 will continue to move forward, and Student 2 will move backward.

• Student 1 will move backward, and Student 2 will move backward.

• Student 1 will come to a stop, and Student 2 will move forward. 

• Student 1 will move backward, and Student 2 will remain where he is.

Which student best describes the cause of the change in direction of the ball?

• Student A says, "The ball and the paddle created a balanced force which changed the direction of the ball." 

• Student B says, "The paddle created an unbalanced force which changed the direction of the ball."

• Student C says, "The ball applied a greater force than the paddle which caused the paddle to change direction."

• Student D says, "The paddle applied an unbalanced force to the ball which did not cause a change in movement."

At recess, Karen sat on the swing (Point A), and pushed back to Point C. If the pattern continues, what are the next 4 points AFTER she leaves Point C?

• Points A, C, B, A

• Points A, B, A, C

• Points A, B, C, A

• Points C, A, B, A

Tariq is watching video tutorials to learn how to juggle. He notices the pattern for juggling an object is up, over, and down. Since he is just learning he needs to slow down the pattern compared to the experts. Which suggestion will help him slowing down the pattern?

• Throwing the objects with more force.

• Throwing the objects with less force.

• Changing the direction of his throws.

• Throwing different objects.

Space X is going to place a satellite in space. Where should they place the satellite to have the strongest gravitational pull to earth?

• location A

• location B

• location C

• location D

After a student throws a ball up in the air, the ball falls down to the ground. Which type of force always acts upon the ball to pull the ball to the ground?

• electrical

• gravitational

• frictional

• magnetic

Mr. Funder’s class had one minute left of recess. What should they do to get the most spins on the merry go round before recess is over?

• Apply less force.

• Apply more force

• Add more students.

• Keep it the same.