Motion and Force

Look at the following pictures

A person can move without slipping, a ball can roll towards a goal, a rocket can fly into space, and fruit falls from a tree, explain how you think these things can happen.

Motion is the change in position of an object from its initial position. Force is a push and pull that can affect the state of an object. Some of the effects of force include changing speed, changing the direction of motion, changing the shape of objects. In your opinion, which of the following statements describes the relationship between force and motion? (remember your answer choices to answer the next question)

• The greater the force exerted, the faster the motion

• The smaller the force exerted, the faster the motion

• The greater the force exerted, the slower the motion

• Applying a force does not affect the motion of an object

In the previous number you have chosen a statement that describes the relationship between force and motion. Here is the statement

a. The greater the force exerted, the faster the motion

b. The smaller the force exerted, the faster the motion

c. The greater the force exerted, the slower the motion

d. Applying a force does not affect the motion of an object

Explain your answer in the previous question, why the statement describes the relationship between force and motion.

The Argo Willis train departs from Bandung station to Gubeng station, which is 105 km away, at 05.30 in the morning. The Argo Willis train moves with an average speed of 25 m/s. Predict what time the train will arrive at Gubeng station.

• 07.00 am

• 06.50 pm

• 06.40 am

• 06.30 pm

A car moving on the road with a constant speed of 10 m/s then slows down because the traffic light shows red. After 5 s, the car stops right in front of the traffic light. What is the car's deceleration?

• -8 m/s²

• -6 m/s²

• -4 m/s²

• -2 m/s²

Matthew will attend an event at Grand City Mall at 04.00 pm. Matthew's house is 5 km from the mall, he leaves at 03.30 pm by driving a car with an average speed of 10 m/s. Will Matthew be able to make it on time?

• Yes

• No

The bus engine generates a force of 18,000 N which makes the bus move on the highway at a speed of 15 m/s. The bus then accelerates and reaches a final speed of 30 m/s after traveling for 10 s. What is the mass of the bus?

• 10000 kg

• 12000 kg

• 15000 kg

• 20000 kg

Each bottom of a shoe or sandal must have a variety of motifs which will disappear over time. Why are the bottoms of shoes and sandals given motifs on the bottom that you can't even see?

Look at the graphic image below

Which graph shows an object in non-uniform motion?

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• 
• 
• 

Tom was on his way to school driving a car driven by his father. Suddenly a cat crosses the road so Tom's father has to brake the car suddenly. When Tom's father braked the car suddenly Tom's father's body and Tom pushed forward, why is this happen?