Unit 5 Test Review - Physical Science

Which of the following is a contact force?

• Gravity

• Friction

• Magnetic Force

• Electrical Force

Which statement about balanced forces is true?

• They change the motion of an object.

• They result in a net force greater than zero.

• They cancel each other out and do not change motion.

• They always cause the object to speed up.

Two students push a box from opposite sides. One pushes with 30 N to the right, and the other pushes with 20 N to the left. What is the net force on the box?

• 50 N to the right

• 10 N to the right

• 50 N to the left

• 10 N to the left

Tags

NGSS.MS-PS2-2

Which of the following best represents how the size of a force is shown in a diagram?

• By the color of the arrow

• By the length of the arrow

• By the shape of the arrow

• By the direction the arrow points

Which of the following best describes an unbalanced force?

• Two equal forces pushing in opposite directions

• A net force of 0 Newtons

• Forces that do not change an object's motion

• Forces that cause motion to change direction, speed up, or slow down

Tags

NGSS.MS-PS2-2

Which of these is an example of a non-contact force?

• A person pushing a shopping cart

• A magnet pulling a paperclip without touching it

• Sliding a book across a table

• Rubbing your hands together to make heat

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-4

NGSS.MS-PS2-5

What is the unit used to measure force?

• Meters per second (m/s)

• Kilograms (kg)

• Newtons (N)

• Joules (J)

If two forces are working in the same direction, how do you calculate the net force?

• Add the forces together

• Subtract the smaller force from the larger force

• Multiply the forces

• Divide the forces

Tags

NGSS.MS-PS2-2

In a free-body diagram, the arrow pointing to the right is labeled 40 N, and the arrow pointing to the left is labeled 40 N. What is the net force?

• 80 N to the right

• 40 N to the left

• 0 N (balanced)

• 80 N to the left

Tags

NGSS.MS-PS2-2

Two people push a box with forces of 25 N and 40 N in the same direction. What is the net force?

• 65 N

• 15 N

• 40 N

• 25 N

Tags

NGSS.MS-PS2-2