P6 Science Forces

Four pupils kicked the same ball from the same spot on a soccer field. The table shows the distance travelled by the ball along the ground before it stopped. Who has applied the greatest force on the ball?

• Ali

• Billy

• Cathy

• Daisy

Forces are involved in the four situations shown. Which of the following correctly identifies the forces involved in each situation?

• 
• 
• 
• 

Which of the object(s) listed has/have gravitational force acting on it?

• A only

• C only

• A and C only

• A, B and C

A baseball player hit a ball during a game. Which of the following statements correctly states the effects of forces on the ball?

• The ball stopped moving at Point R.

• The ball changed its direction at Point Q.

• The ball moved faster from Point P to Point Q.

The graph shows the relationship between the length of a spring and the mass of a weight that is hung on it.  What is the extension of the spring when a 50 g-weight is hung on it?

• 4 cm

• 6 cm

• 8 cm

• 10 cm

Two identical wooden blocks, A and B, are being pulled up from different positions on a slope. Block A and B each moves up 4 cm from their starting position. Which of the following statements are true about the wooden blocks?

• B needs more force to pull it up than A.

• A and B need the same amount of force to pull them up.

• A and B have the same amount of frictional force acting on them.

• A has a greater amount of gravitational force acting on it.

Tom hung different masses on two springs, A and B, one at a time. He recorded the length of the spring. His results are shown in a graph. Which one of the following correctly represents the conclusion that Tom can draw from the experiment?

• A is stiffer than B.

• B can be stretched less than A with the same load.

• The original length of B is shorter than A.

• The extension of both A and B is the same when the load is 20 g.

Ze Yu throws a javelin up into the air during an athletics competition. The dotted line shows the path the javelin will travel through the air. At which point(s) is gravitational force acting on the javelin?

• S only

• R and S only

• S and T only

• R, S and T

The diagram below shows a person skiing down a slope. Which of the arrows show the directions of forces experienced by the skier?

• Friction: C

  Gravity: D

• Friction: D

  Gravity: A

• Friction: C

  Gravity: B

• Friction: D

  Gravity: B

The diagram shows how the length of a spring changes when a load of 100 g is hung from it. What will be the extension of the spring when a 150 g load is hung on it?

• 15 cm

• 9 cm

• 3 cm

• 6 cm