Y8 Forces & Motion, Pressure, Density

A student is pushing a book with a force of 10 Newtons to the left. Another student is pushing the book to the right. How many Newtons of force is the second student pushing with if the book is not moving?

• 10 Newtons

• 5 Newtons

• 0 Newtons

• 1 Newton

Tags

NGSS.MS-PS2-1

To drag a sofa over carpet, movers sometimes use slippery pads. Which force is reduced with the use of the pads?

• Friction

• Gravity

• Push

• Magnetism

Tags

NGSS.3-PS2-1

Why does a newly oiled machine work faster than a machine that hasn't been oiled?

• Oil reduces the friction between the parts

• Oil increases the friction between the parts

• Gravity acts more on an old machine

• Gravity acts more on a new machine

Tags

NGSS.MS-PS2-2

What should you do to make a toy car roll faster down a ramp?

• Push it with more force

• Push it with less force

• Remove the force of gravity

• Use magnetism to push it down

Tags

NGSS.MS-PS2-2

Who is winning this race?

• A
• B

Tags

NGSS.MS-PS3-1

Balanced forces can cause

• an object to speed up or slow down
• an object to stay still or move at a constant speed and direction

Tags

NGSS.MS-PS2-2

What speed is the person with the red line going?

• 20 km per hour
• 10 km per hour
• 50 km per hour
• 30 km per hour

Tags

NGSS.MS-PS3-1

When was the ostrich going at a constant speed?

• Between 0 and 30 min.
• Between 45 and 60 min.
• Between 30 and 45 min.

Tags

NGSS.MS-PS3-1

this force is ___________ and there will be 

• unbalanced, no movement
• balanced, movement to the left
• balanced, no movement

Tags

NGSS.MS-PS2-2

If all four forces are balanced, the plane will

• plummet to the ground
• fly faster and faster
• fly slower and slower
• fly at a constant speed and direction

Tags

NGSS.MS-PS2-2