Forces Test

1. Two students apply force to a box at rest on the floor. What is the total amount of force in Newtons acting on the box and in which direction?

• A. 10 N Left
• B. 10 N Right
• C. 70 N Left
• D. 70 N Right

2. Calculate the net force in Newtons of the following situation. <- 2N + -> 8N =

• A. <- 10N
• B. <- 6N
• C. -> 10N
• D. -> 6N

3. The image provided shows two toy cars pushing against each other with a force given in Newtons. Which of the following describes how the two-car system will behave? The two cars will -

• A. accelerate steadily to the right.
• B. move at a constant speed to the right.
• C. accelerate steadily to the left.
• D. move at a constant speed to the left.

4. Which of the following examples best represents an object with balanced forces acting upon it?

• A. A boat moving through the water.
• B. A book sitting on a high shelf.
• C. A wagon rolling down a steep hill.
• D. A baseball thrown into the air.

5. Calculate the net force of the following situation. ← 10 Newtons + → 30 Newtons

• A. ← 40 Newtons
• B. ← 20 Newtons
• C. → 40 Newtons
• D. → 20 Newtons

6. Which of the following sets of forces acting on an object will result in the object moving?

• A. 5 Newtons Up and 5 Newtons Down
• B. 31 Newtons Left and 32 Newtons Right
• C. 0 Newtons Up and 0 Newtons Down
• D. 9 Newtons Left and 9 Newtons Right

7. A student wanted to get an object to move with a net force of ↑ 15 Newtons. The combinations of forces that can be exerted to create that net force are:

• A. ↑13 Newtons + → 2 Newtons
• B. ↓ 35 Newtons + ↑ 20 Newtons
• C. ↑ 7 Newtons + ↑ 8 Newtons
• D. ↑ 15 Newtons + ↓ 15 Newtons

8. Provided is a diagram showing forces on a box. What is the net force on the box?

• A. 5 Newtons ->
• B. 5 Newtons <-
• C. 15 Newtons ->
• D. 15 Newtons <-

9. Which of following gives the best description of speed?

• A. A school bus travels 40 km in an hour.
• B. An airplane flies south for a time of 2 h.
• A freight train travels towards the border 500 km in a day.
• D. A hot air balloon travels at 35 km/h from Albuquerque to Santa Fe.

10. Which of the following is an example of balanced forces acting upon an object?

• A. An apple falling from the branch of a tree
• B. A baseball accelerating away from a bat.
• C. A boulder sitting at the top of a mountain.
• D. An empty wagon rolling to a stop.