KS3 Forces

If these boys are pulling with the same amount of force.  What will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

Tags

NGSS.MS-PS2-1

What is the net force on the block? (The overall force)

• 5 Newtons up

• 5 Newtons down

• 15 Newtons up

• 15 Newtons down

The unit of measurement for forces is

• Joules

• Meters

• Kilograms

• Newtons

If there were no forces acting on a moving object it would

• stay in motion

• come to a stop

• lose speed

• gain speed

What will cause an object to move?

• Applied forces
• Balanced forces
• Unbalanced forces

Tags

NGSS.MS-PS2-2

Balanced or Unbalanced?

• Balanced 
• Unbalanced

Tags

NGSS.MS-PS2-2

Which example would be a balanced force?

• Train moving at a constant speed in the same direction.

• A skier going down a hill.

• A basketball being passed to a teammate.

• An apple falling to the floor.

What is terminal velocity?

• Constant speed in a certain direction

• Changing speed in a certain direction

• Changing direction

• Slowing down in one direction

What force acts on a skydivers parachute?

• Gravity

• Weight

• Air resistance

• Thrust

To calculate weight...

• Weight = gravity ÷ mass

• Weight = distance x time

• Weight = volume x distance

• Weight = mass x gravity