WPE Review Game

If 150 Joules of work is needed to move a box 10 meters, what force was used? 

• 1500 N
• 15 N
• 1.5 N
• 150 N

Tags

NGSS.MS-PS2-2

Gravitational potential energy depends on the ________ and ________ of the object. 

• Height and mass
• Friction and movement
• Mass and Movement
• Height and Friction 

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-2

Elastic potential energy is energy stored in object that are compressed or __________.

• movement

• stretched

• harnessed

• pulled

Why does the total amount of mechanical energy stay constant in a system?

• energy is not created or destroyed
• energy leaves
• energy enters
• energy is not converted from one form into another

Tags

NGSS.MS-PS3-5

How much work is done on a 300-Newton suitcase to lift it 0.50 meter on 5 seconds?

• 600 J
• 300 J
• 150 J
• 75 J

Giselle runs the 800 meter event on Saturday, if she decrease her time to run the event on Monday, her power will______?

• increase

• decrease

• remain the same

• inversely proportionally decrease

Which of the following situations are NOT an example of Work?

• a cart moves horizontally as a vertical force acts on it

• pulling a cart up a hill

• pushing a block horizontally across a table

• holding a weight stationary above the floor

Brianna decided to use a forklift to raise a toy car. Calculate the amount of work needed to lift an 8 kg toy car to a height of 16 meters.

• 1254 J

• 128 J

• 2 J

• 64 J

Kimberly pushed a 18 kg ball off of a bridge. The ball's velocity just before it hit the water below was 23 meters per second. Find the ball's kinetic energy.

• 4761 Joules

• 414 Joules

• 207 Joules

• 9522 Joules

Assume you observe a cat, a dog and a tiger walking down the street at the same speed. What will determine the amount of kinetic energy for each animal?

• mass
• height
• power
• cuteness