Practice Motion and Acceleration 2025

Two ropes are attached to a wagon, and each is pulled with 10 N of force, as shown. What will be the wagon's motion when the ropes are pulled at the same time?

• As long as the forces on the ropes remain constant, the wagon will move in a circle.

• As long as the forces on the ropes remain constant, the wagon will slowly raise off the ground.

• The forces will cancel out because they are equal and opposite, and the wagon will not move.

• The wagon will rock steadily back and forth, about a meter in each direction, due to the applied forces.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

The model shows forces that act on a train engine. The table lists the forces from different types of boxcars that can be attached to the engine. The train engine exerts a force of 6,000 N. Which combination of boxcars when attached will allow the train to continue to move at a constant speed down the tracks?

• two red boxcars

• two blue boxcars

• two green boxcars

• two yellow boxcars

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Four forces are acting on a box floating in outer space as shown in the diagram. In what directions will the box move?

• downward and to the left

• upward and to the left

• downward and to the right

• upward and to the right

Tags

NGSS.MS-PS2-2

A car is moving in a straight line at constant velocity. What statement best predicts the car’s continued motion?

• The car will come to a complete stop when the slowing forces are less than the forces propelling it forward.

• The car will begin to move right or left at a new velocity because there are no new changes in the forces that continue to act on the car.

• The car will begin to speed up when the slowing forces are greater than the forces propelling it forward.

• The car will continue to move in a straight line at the same velocity as long as the same forces continue to act on the car.

A baseball, a football, and a bowling ball are thrown with the same force. If a baseball has less mass than a football, and a football has less mass than a bowling ball, what can be said about the motion of the three balls?

• The baseball will move faster than the football and the bowling ball.

• The football will move faster than the baseball and the bowling ball.

• The bowling ball will move faster than the baseball and the football.

• The baseball, the football, and the bowling ball will move with the same speeds.

Tags

NGSS.MS-PS2-2

Arnold places some items in a cart and pushes the cart across an aisle in a store. What should Arnold do to move the cart the fastest?

• Increase the number of items in the cart.

• Increase the amount of force applied to the cart.

• Use a larger cart to carry the items across the aisle.

• Use a smaller cart to carry the items across the aisle.

Tags

NGSS.MS-PS2-2

Sam places a 5-kg box on the floor and tries to push the box by applying different forces. Which force will make the box move fastest?

• 5 N

• 10 N

• 15 N

• 20 N

Tags

NGSS.MS-PS2-2

An object at rest experiences a set of unbalanced forces acting in opposite directions. Which pair of unbalanced forces will result in the object experiencing the greatest movement from rest?

• [Image: 25 N left, 35 N right]

• [Image: 30 N left, 35 N right]

• [Image: 35 N left, 40 N right]

• [Image: 45 N left, 50 N right]

Tags

NGSS.HS-PS2-1

An object is initially at rest on a frictionless surface. Different amounts of force are applied to either the right or the left on the object. Which scenario will result in the object moving the fastest?

• [Image: 16 N right]

• [Image: 18 N left]

• [Image: 20 N right]

• [Image: 24 N left]

Tags

NGSS.MS-PS2-2

An experiment is performed in which a 1 kg rocket is launched with a force of 100 N and an initial vertical velocity of 20 m/s. In a second experiment, a rocket identical in size and shape but weighing 2 kg is launched vertically with the exact same force. How will the initial velocity of the second rocket compare to that of the first?

• The second rocket will have a greater initial velocity because it has a greater mass than the first rocket.

• The second rocket will have a lower initial velocity because it has a greater mass than the first rocket.

• The second rocket will have the same initial velocity because both rockets are the same size and shape.

• The second rocket will have the same initial velocity because the rocket’s velocity depends on the launch force and not the mass.

Tags

NGSS.MS-PS2-2