IQ Analysis | Investigating the Question

A sledgehammer has a mass of 3.5 kg. What net force, to the nearest whole newton, will a person need to apply to accelerate the sledgehammer at a rate of 4.0 m/s²?

• 14 Newtons

• 10 Newtons

• 14 kg

• 14 m/s²

Tags

NGSS.MS-PS2-2

Which rocket had the greatest acceleration?

• Rocket 1

• Rocket 2

• Rocket 3

• Rocket 4

Tags

NGSS.MS-PS2-2

The diagram shows a duck swimming in a stream in the opposite direction the stream is flowing. The duck pushes against the water, so the water pushes the duck forward with 20 newtons of force. The water also exerts 15 newtons of resistive force against the duck. Which statement best describes the resulting motion of the duck?

• The duck will stop moving.

• The duck will stop and then start moving again.

• The duck will continue moving in its current direction.

• The duck will move in the direction that the stream is flowing.

Tags

NGSS.MS-PS2-2

A student bounces a basketball off the gym floor. Which statement correctly describes the action-reaction force pair that causes the ball to bounce?

• The gym floor pushes up on the ball as the ball pushes down on the floor with an equal amount of force.

• The gym floor pushes up on the ball with a greater amount of force than the ball pushes down on the floor.

• The gym floor pushes up on the ball as gravity pulls down on the ball with an equal amount of force.

• The gym floor pushes up on the ball with a greater amount of force than gravity pulls down on the ball.

Tags

NGSS.MS-PS2-1

Based on the data table, which cart has the lowest acceleration?

• W

• X

• Y

• Z

Tags

NGSS.MS-PS2-2

A plastic tube is arranged on a lab tabletop as shown. A small sphere enters one end of the tube with enough speed to come out the other end of the tube. Which diagram shows where the sphere will go first when it leaves the tube?

• 
• 
• 
• 

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Name the forces that directly affect the block’s motion both before and after the block has been released. Describe the effects of each force named.

• Gravity and friction affect the block's motion, with gravity pulling it down and friction opposing its movement.

• Only gravity affects the block's motion, pulling it downwards.

• Only friction affects the block's motion, opposing its movement.

• Neither gravity nor friction affects the block's motion.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A photograph of a bird perched on a fence post is shown. Which description best identifies the action-reaction pair between the bird and the fence post?

• Action: The force of the bird on the wires, Reaction: The force of the wires on the fence post.

• Action: The force of the wires on the fence post, Reaction: The force of the fence post on the bird.

• Action: The force of the fence post on the bird, Reaction: The force of the bird on the wires.

• Action: The force of the bird on the fence post, Reaction: The force of the fence post on the bird.

Tags

NGSS.MS-PS2-1

When a coin is tossed in the air, it travels upward, gradually slows down, momentarily reaches zero speed, then moves back downward with increasing speed. Which statement best explains this change in the coin’s motion?

• The force of gravity causes the coin to change its velocity.

• The coin’s inertia decreases on the way up and increases on the way down.

• The action-reaction force pair of gravity and the applied force cancel each other.

• The coin remains in its state of upward motion until the force of friction acts upon it.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

According to Newton’s first law, what happens to the steel ball just after the box stops?

• Because of friction, the ball continues rolling forward at the same speed.

• Because of friction, the ball rolls forward at an increased speed.

• Because of inertia, the ball continues rolling forward at the same speed.

• Because of inertia, the ball rolls forward at an increased speed.