A game of tug-of-war, in which two teams pull on opposite ends of a rope, is illustrated here. The center of the rope will move when which of the following is true?

• The ground provides no friction for either team

• One team has more people than the other

• The rope has essentially no mass of its own

• One team pulls with more force than the other

Tags

NGSS.MS-PS2-2

Two horses pull in opposite directions, but together move in the direction shown. Which of the following best describes the forces being applied in this situation?

• The forces are balanced, and the net force is zero

• The forces are unbalanced, and the force of Horse 1 is greater

• The forces are unbalanced, and the force of Horse 2 is greater

• The forces are balanced, and the force of Horse 1 is greater

Tags

NGSS.MS-PS2-2

An object that is at rest will begin to move if which of the following is true?

• The surface on which it rests is frictionless

• The mass of the object is sufficient

• Unbalanced forces act on the object

• Gravity on the object can be reduced

Tags

NGSS.MS-PS2-2

The forces acting on a box are illustrated below. The result of these forces will be that the box will –

• move to the right

• move to the left

• Stay in the same spot

• move upwards

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is happening between 9am and 11am?

• The cyclist is traveling up a hill
• The cyclists is speeding up
• The cyclists is traveling at a constant speed
• The cyclist is slowing down

Tags

NGSS.MS-PS3-1

What do you think the cyclist is doing between 11am and 1pm?

• The cyclist has stopped for lunch
• The cyclists is riding at a constant speed on flat ground
• The cyclist is practicing sprints
• The cyclist is riding up a hill

What is the total distance covered by 2 pm?

• 40 miles
• 30 miles
• 60 miles
• 10 miles