Work vs. No Work

A student needs 10 Newtons of force to lift a box to the top of a 2 meter shelf. How much work do they do?

• 12 J

• 8 J

• 20 J

• 5 J

A soccer player kicks a ball with 20 Newtons of force causing it to travel 100 meters. How much work is done on the ball?

• 200 J

• 80 J

• 5 J

• 2000 J

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

NGSS.MS-PS3-4

A worker climbs a ladder and does 8 J of work on a 2 N object. What is the distance they lift the object?

• 18 m

• 4 m

• 10 m

• 6 m

Tags

NGSS.MS-PS3-5

How much work is done in holding a 15 N sack of potatoes while waiting in line at the grocery store for 3 minutes?

• 15 J
• 45 J
• 0 J
• 5 J

Is this an example of work? 
A waiter carries a tray full of meals above his head by one arm straight across the room at constant speed. 

• True
• False

How do we calculate work?

• W = F * d
• w = f * D
• W = F * D
• w = f * d

The SI unit of work is?

• Joules
• Watts
• Newtons
• meters

Tags

NGSS.MS-PS3-5

How will this object move? 

• It won't move. 
• It will move to the right. 
• It will move to the left. 
• It will move up. 

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

How will this object move? 

• It won't move. 
• It will move to the right. 
• It will move to the left. 
• It will move in both directions. 

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is the net force?

• 30 N left
• 25 N right
• 5 N left
• 55 N right

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2