1. A car speeding up: When a car starts from rest and increases its speed, it is accelerating. This is because its velocity is changing over time. The car is gaining speed.

2. A ball thrown upwards: Even though the ball slows down as it travels upwards, it is still accelerating. This is because gravity is constantly acting on the ball, pulling it downwards. The ball is changing direction as it slows down.

Remember that acceleration doesn't just mean getting faster, it means *changing* velocity. This can include speeding up, slowing down, or changing direction!