Mass, Force Types and Net Force STUDY GUIDE (HONORS)
Name: ______Date: ______Period: ______
1. How does mass affects the motion? Speed it up, slow it down, start it, stop it, and change direction.
2. How do forces affect the motion of an object? Speed it up, slow it down, start it, stop it, and change direction.
3. In the image above explain what would happen if the car and truck slam on brakes and why?
The car would stop before the truck because the truck has more mass.
4. Do falling objects drop at the same rate (for instance a pen and a bowling ball dropped from the same height) or do they drop at different rates if air resistance is not present? Explain your answer.
They drop at the same rate because there is no force to oppose it’s motion.
5. What is the difference between a balance and unbalance force?
6. Define Speed.
7. Define Force.
8. Define Motion. Motion is the change in position.
9. A car that has a weight of 150 N moves with a constant velocity of 15 m/s to the left on a horizontal road. According to Newton’s laws of motion, which of the following statements is correct?
a. The table exerts a force of 15N to the left on the toy cart.
b. The toy cart exerts a force of 150 N upward on the table.
c. The table exerts a force of 150 N upward on the toy cart.
d. The toy cart exerts a force of 15 N downward on the table.
10. Below is a diagram of a tug-a0war. Circle the correct word to complete the sentences that follow.
a. The forces shown are PUSHING/ PULLING forces.
b. The forces shown are acting in the SAME DIRECTION/ OPPOSITE DIRECTIONS.
c. The forces are EQUAL/ NOT EQUAL.
d. The forces are BALANCED/ UNBALANCED..
e. Motion is to the RIGHT/ LEFT.
f. What is the net force? 100 N Left
11. A person is in a rolling chair at rest and throws a soccer ball to the right. The person in the will chair has a greater mass than the ball. What will happen to the person in the rolling chair and the soccer ball when they throw it? The rolling chair will roll backwards at a slow speed and the soccer ball will mover forward.
12. Out of the following, which would have the greatest acceleration? Explain your answer.
a. 40 N – 5 kg Because of greater force and less mass
b. 20 N- 5 kg
c. 40 N- 10 kg
d. 20 N- 10 kg
13. A box is being pushed by two stellar science students, one on each side of the box. Dalton is pushing the box with a force of 10 N to the left. DeAndre is pushing the box with a force of 15 N to the right. Who is the stronger individual and what is the net force and direction on the box.
Dalton 10N left DeAndre 15N right
Stronger Individual: DeAndre
Net Force: 5N right Unbalance
14. During tug of war Janelle felt she was supergirl and attempted to beat Rameek. Janelle with one arm on the rope and the other at her side applied a 100 N force to the left, while Rameek applied a 100 N force with both hands to the right. What is the net force and direction on the rope?
Janelle 100N left Rameek 100N right
Net Force: 0N Balance
15. Janelle finally decided to take this seriously and put both hands on the rope and applied a 150 N force to the left, while Rameek still struggled with his 100 N force to the right. What is the net force and direction of motion.
Janelle 150N left Rameek 100N right
Net Force: 50N left Unbalance