19-20 Energy (7th Science) PE Factors LT2 SA

The gravitational potential energy stored between an object and Earth depends on 

• The object's speed and height. 
• The object's mass and speed. 
• the object's size and weight. 
• The object's height and weight. 

Tags

NGSS.MS-PS3-2

1. The diagram shows two bowling balls of equal mass.  Ball A is resting near the edge of a shelf.  Ball B is resting on the ground below. Which of these statements best describes the diagram above?

• Ball A has more kinetic energy than Ball B.
• Ball B has more kinetic energy than Ball A
• Ball A has more potential energy than Ball B
• Ball B has more potential energy than Ball A

3. The figure below shows a wagon that moves from point X to point Y. Which of the following best describes the wagon’s change in energy as it travels from point X to point Y?

• The wagon has the same kinetic energy at point Y and at point X
• The wagon has more kinetic energy at point Y than at point X
• The wagon has the same gravitational potential energy at point Y and at point X
• The wagon has more gravitational potential energy at point Y than at point X

A skateboarder travels from location 1 to location 4 as shown.  At which location does the skateboarder have the most kinetic energy and the least potential energy?

• 1
• 2
• 3
• 4

The picture shows the path of a basketball when a player takes a shot at the basket. At which point does the ball have the greatest potential energy?

• 1
• 2
• 3
• 4

Which would have the greatest gravitational potential energy?

• A 4lb rat on a school desk
• A 45lb dog in an oak tree
• A 14 pound platypus on a swing
• A 45lb child on a bike

Tags

NGSS.MS-PS3-2

NGSS.MS-PS2-4

A skateboarder travels from location 1 to location 4 as shown. At which location does the skateboarder change from kinetic energy to potential energy?

• 1 to 2

• 2 to 3

• 3 to 4

• 1 to 4

The picture shows the path of a basketball when a player takes a shot at the basket. At which point does the ball have the least potential energy?

• 1

• 2

• 3

• 4

At which point does the ball have the greatest gravitational potential energy (GPE)?

• A

• G

• D

• C

• G

How could you increase the gravitational potential energy of an object without changing its mass and gravity?

• Make the object larger

• Lower the object towards the ground

• Raise the object farther off the ground

• Allow the object to roll on the ground

Tags

NGSS.MS-PS3-2