8th Grade Trimester 1 & 2 Benchmark Practice

A group of students performed an investigation with toy cars. They applied a force on the toy cars and measured the time it took the cars to move through a 10-meter distance. The data from their investigation is shown below.

What question were they most likely trying to answer?

• Does the mass of a car affect the change in motion?

• Does the force on a car affect the change in motion?

• Does the distance the car travels affect the time?

• Does the mass of a car affect the distance the car travels?

Tags

NGSS.MS-PS2-2

Below is the graph of the motion of a car. Which of the following best explains the motion of the car represented in section “D” of the graph?

• The car is going faster than it was in section “B”.

• The car is stopped in section “D”.

• The car is moving on level ground in section “D”.

• The car is higher than it was in section “B”.

Tags

NGSS.MS-PS3-1

A fifth grade class had a model car race. The students were divided into 4 groups. Each group built a model car for the race. Below are the results of race. Who won?

• Car 1

• Car 2

• Car 3

• Car 4

Tags

NGSS.MS-PS3-1

What makes things move?

• weight

• matter

• a push or a pull

Lisa and Nick are pushing on opposite sides of a box. The box moves towards Nick. What is the best explanation for why the box moves towards Nick?

• Lisa is pushing with more force.

• Nick is pushing with more force.

Which box moved the fastest?

• The 3 pound box moved the fastest.

• The 5 pound box moved the fastest.

• The 10 pound box moved the fastest.

Whan an Apple falls down,,, which force is being applied?

• friction

• motion

• gravity

Gravity pulls objects ______________.

• without touching them

• by making them warm

• by making them bigger

Which force makes it hard to ride a bike on grass?

• motion

• friction

• magnetism

When you rub your hands when washing them is an example of...

• Gravity

• Friction

• Magnetism