Force and Motion

Think about what happened during our tug of war. Every person pulled the rope with a force of 15 Newtons (N).

Which of the following statements best explains what will most likely happen when these students pull the rope at the same time?

• The forces are unbalanced, the side with three people will move forward.

• The forces are balanced, so neither side will move.

• The forces are unbalanced, the side with three people will move backward.

• The forces are unbalanced, the side with one people will move backward.

What is a force?

• a push or pull
• speed or acceleration 
• potential or kinetic energy
• balanced or unbalanced force

Tags

NGSS.3-PS2-1

When objects remain in the same place, it is called...

• gravity
• friction
• balanced force
• unbalanced force

Tags

NGSS.3-PS2-1

What is the force that causes everything to be pulled down to the Earth?

• friction
• gravity
• balanced
• unbalanced

Tags

NGSS.5-PS2-1

An unbalanced force is when objects move in one direction because the force is greater from that direction.

• true
• false

Tags

NGSS.3-PS2-1

Friction helps objects to move easier.

• true
• false

Tags

NGSS.3-PS2-1

When playing Jenga, and you've removed quite a few pieces, how is it still standing?

• gravity
• force
• motion
• balanced forces

When the brakes are used on the school bus, what force is used?

• Friction
• Gravity
• Magnitism
• Inertia

When you are on roller skates, and push your hands against a friends, what will happen?

• you both stay in the same place
• your friend moves, but you stay the same
• you stay the same, but your friend moves
• you both roll back

Why is it harder for the boy in Image B to get down the hill?

• Motion
• Friction
• Work
• Displacement

Tags

NGSS.3-PS2-1