Grade 4 Force and Motion quiz

📚 Quick Study Guide

• 🍎 Force: A push or a pull that can change an object's motion.
• 🚗 Motion: A change in the position of an object over time.
• ↔️ Balanced Forces: Equal forces acting in opposite directions; no change in motion.
• ⬆️Unbalanced Forces: Unequal forces; cause a change in motion (starting, stopping, speeding up, slowing down, or changing direction).
• 🧱 Friction: A force that opposes motion between surfaces that are touching.
• ⛰️ Gravity: A force that pulls objects towards each other. On Earth, it pulls everything towards the ground.
• 📏 Speed: How fast an object is moving. Speed can be calculated using the formula: $Speed = \frac{Distance}{Time}$.

🧪 Practice Quiz

1. What is a force?
   1. A type of energy.
   2. A push or a pull.
   3. The speed of an object.
   4. The weight of an object.
2. What happens when balanced forces act on an object?
   1. The object starts moving.
   2. The object stops moving.
   3. The object does not change its motion.
   4. The object changes direction.
3. Which of these is an example of friction?
   1. A ball rolling smoothly across ice.
   2. A person walking on a sandy beach.
   3. An apple falling from a tree.
   4. A magnet attracting a nail.
4. What force pulls objects towards the Earth?
   1. Friction.
   2. Gravity.
   3. Magnetism.
   4. Air resistance.
5. What causes an object to change its motion?
   1. Balanced forces.
   2. No forces.
   3. Unbalanced forces.
   4. Constant speed.
6. If a car travels 100 meters in 10 seconds, what is its speed?
   1. 5 m/s
   2. 10 m/s
   3. 100 m/s
   4. 200 m/s
7. Which of the following is the BEST example of motion?
   1. A book sitting on a table.
   2. A tree standing in a forest.
   3. A bird flying through the air.
   4. A rock resting on the ground.